I2C creates some sysfs nodes in the wrong places: not as children of parent
controllers, but as their peers (!). This puts them into the right place
always, instead of just when the adapter is on the platform bus.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds support for two new VID codes, supporting Intel mobile Core
processors and new Conroe based platforms.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This driver implements support for the National Semiconductor LM70
temperature sensor.
The LM70 temperature sensor chip supports a single temperature sensor.
It communicates with a host processor (or microcontroller) via an
SPI/Microwire Bus interface.
Communication with the LM70 is simple: when the temperature is to be sensed,
the driver accesses the LM70 using SPI communication: 16 SCLK cycles
comprise the MOSI/MISO loop. At the end of the transfer, the 11-bit 2's
complement digital temperature (sent via the SIO line), is available in the
driver for interpretation. This driver makes use of the kernel's in-core
SPI support.
Signed-off-by: Kaiwan N Billimoria <kaiwan@designergraphix.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Hardware monitoring chips don't have to be on the I2C bus.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
i2c-i801: Merge setup function
Merge i801_setup into i801_probe, as it doesn't make much sense to
have them split. This lets us handle errors better. Christopher
Hellwig had been suggesting this back in March 2003 when the driver
was merged.
Also drop two useless debug messages (revision and base address can be
obtained from lspci, procfs or sysfs.)
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
i2c-i801: Better pci subsystem integration
Integrate the i2c-i801 driver better with the pci subsystem, by
calling pci_{enable,disable}_device and requesting the I/O region
by BAR rather than direct configuration space access.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
i2c-i801: Cleanups
Various cleanups to the i2c-i801 driver:
* Fix documentation file and self file name references.
* i801_setup can be marked __devinit.
* Drop useless error local variable and label in i801_setup.
* Avoid a double PCI configuration register write in some cases.
* Use symbolic names for SMBHSTCFG bits.
* Transmit the error code returned by i801_setup instead of forcing it
to an arbitrary value.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
i2c-i801: Remove PCI function check
Remove the PCI function number check when probing devices.
This check is redundant, each function has a separate PCI device
ID, so checking for that ID is sufficient.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
i2c-i801: Remove force_addr parameter
Remove the force_addr module parameter. It doesn't appear to ever
have been needed, and PCI resources shouldn't be arbitrarily
changed anyway.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
i2c-i801: Fix block transaction poll loops
Two of the three poll loops have the poll and sleep swapped,
causing an extra sleep to occur after the polled condition is
fulfilled. In practice, this doubles the amount of sleep time for
every block transaction.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In i2c bus driver scx200_acb, function scx200_acb_probe can be
tagged __init.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
On the CS5535 and CS5536, the I/O resource is allocated through PCI,
so use that instead of using the MSR backdoor.
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The attached patch marks i2c_smbus_write_block_data() and
i2c_smbus_write_i2c_block_data() buffers as const.
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Minor cleanup to the i2c-ocores driver.
Peter Korsgaard will maintain the i2c-ocores driver.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
One of my testers had a problem where the driver only saw 2 of the 4 fan
sensors his uGuru has, this fixes this.
-accept 0x40 (bit 6) being high as a valid fan sensor setting for all fans
not just fan 1, I have a feeling this bit indicates whether or not a fan is
actually connected .
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fixes to the Abit uGuru driver as requested in review by Jean Delvare:
- exactly calculate the sysfs_names array length using macro
- use snprintf when generating names to double check that the sysfs_names
array does not overflow.
- use ARRAY_SIZE and / or defines to determine number of loops in for loops
instead of using hardcoded values.
- In abituguru_probe(), refactor the error path leaving a single call to kfree
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
New hardware monitoring driver for the Abit uGuru
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add missing data lock in w83792d driver to avoid unexpected
data change.
Signed-off-by: Yuan Mu <ymu@winbond.com.tw>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
W83792D use pwm register low 4 bits to store PWM/DC value, bit 7
is used to store fan PWM/DC mode. The store_pwm function did not
convert the pwm input correctly, so it may change the fan mode
when new value is set.
This fix the problem. Change the "index" value of pwm*_mode
and pwm* SENSOR_ATTR to simplify code.
Signed-off-by: Yuan Mu <ymu@winbond.com.tw>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix a typo in the hdaps driver.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Robert Love <rml@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The following patch adds support for the OpenCores I2C controller IP
core (See http://www.opencores.org/projects.cgi/web/i2c/overview).
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Improve the Kconfig help text of the follwing i2c drivers:
* busses/i2c-pca-isa.c
* chips/pcf8574.c
* chips/pcf8591.c
These are hard to detect and building them into the kernel
results in long delays at boot.
March 2006, thread "I2C_PCA_ISA causes boot delays"
http://marc.theaimsgroup.com/?l=linux-kernel&m=114360399415744&w=2
April 2006, thread "i2c-related 1-minute hang during bootup"
http://marc.theaimsgroup.com/?l=linux-kernel&m=114640992330721&w=2
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Following patch trims the VID value to correct number of bits
for each VRM.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Improve the help text for CONFIG_HWMON to let the users know how they
pick the right hardware monitoring driver(s) for their system.
Also fix a couple typos in the related documentation file and improve
some parts a bit.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add support for the w83791d sensor chip. The w83791d hardware is
somewhere between the w83781d and the w83792d and this driver code
is derived from the code that supports those chips.
Signed-off-by: Charles Spirakis <bezaur@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Update the list of systems supported by the hdaps driver:
* Add the "ThinkPad Z60m" entry, reported by Arkadiusz Miskiewicz.
* Add the "ThinkPad H" entry, reported by Frank Gevaerts for some
ThinkPad R52 models (1846AQG).
* Drop the "ThinkPad X41 Tablet" entry, which looks redundant to me.
And a comment update for good measure.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Arkadiusz Miskiewicz <arekm@maven.pl>
Cc: Frank Gevaerts <frank@gevaerts.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add support for the new nForce4 MCP51 (also known as nForce 410 or
430) and nForce4 MCP55 to the i2c-nforce2 driver. Some code changes
were required because the base I/O address registers have changed in
these versions. Standard BARs are now being used, while the original
nForce2 chips used non-standard ones.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Properly document on which systems the i2c-piix4 SMBus driver will
refuse to load. Hopefully this will make it clearer for users, which
were often wondering why their destop or server systems were detected
as laptops.
Closes bug #6429.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes the fix_hstcfg option from the driver and related
SMBus Interrupt Select register magic because now we know what are
valid values for this register. This patch updates the documentation
and adds new IRQ mode check so we are sure not to miss any new
"unusual" value.
The PCI quirk for users of fix_hstcfg was not developed because the
chipset lacks of subsystem ID registers and DMI is stated "To be
filled". Impact to existing systems is minimal because the problem
showed up on motherboards like 10 years back. On the other hand users
of newer Serverworks and HT1000 systems won't be misleaded by the
message suggesting to try the fix_hstcfg any more.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds support for the ST m41t81 and m41t85 i2c rtc chips
to the existing m41t00 driver.
Since there is no way to reliably determine what type of rtc chip
is in use, the chip type is passed in via platform_data. The i2c
address and square wave frequency are passed in via platform_data
as well. To accommodate the use of platform_data, a new header
file include/linux/m41t00.h has been added.
The m41t81 and m41t85 chips halt the updating of their time registers
while they are being accessed. They resume when a stop condition
exists on the i2c bus or when non-time related regs are accessed.
To make the best use of that facility and to make more efficient
use of the i2c bus, this patch replaces multiple i2c_smbus_xxx calls
with a single i2c_transfer call.
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch does some cleanup to the m41t00 i2c/rtc driver including:
- use BCD2BIN/BIN2BCD instead of BCD_TO_BIN/BIN_TO_BCD
- use strlcpy instead of strncpy
- some whitespace cleanup
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds the ATI IXP southbridges support to i2c-piix4,
as it turned out those chips are compatible with it.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The F71805F I/O resource structure needs not be a global variable,
as the platform core allocs its own copy of it anyway.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
New driver (smsc47m192) which supports voltage and temperature
measurement features of SMSC LPC47M192 and LPC47M997 chips.
Signed-off-by: Hartmut Rick <linux@rick.claranet.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add alarms support for the W83627EHF/EHG hardware monitoring chip.
This is based on an earlier patch from Rudolf Marek.
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add the voltage measuring support to W83627EHF. The code is based
on the patch provided by Yuan Mu from Winbond.
Signed-off-by: Yuan Mu <Ymu@winbond.com.tw>
Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add LM82 temperature sensor support (similar to the LM83,
but less featureful).
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Patch from Uli Luckas
This patch removes the fake return from serial_pxa_get_mctrl.
Signed-off-by: Uli Luckas <u.luckas@road-gmbh.de>
I just can't remember why this return was there.
Being in the first column clearly indicates it was meant to be removed.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Rootcaused the bug to a deadlock in cpufreq and ondemand. Due to non-existent
ordering between cpu_hotplug lock and dbs_mutex. Basically a race condition
between cpu_down() and do_dbs_timer().
cpu_down() flow:
* cpu_down() call for CPU 1
* Takes hot plug lock
* Calls pre down notifier
* cpufreq notifier handler calls cpufreq_driver_target() which takes
cpu_hotplug lock again. OK as cpu_hotplug lock is recursive in same
process context
* CPU 1 goes down
* Calls post down notifier
* cpufreq notifier handler calls ondemand event stop which takes dbs_mutex
So, cpu_hotplug lock is taken before dbs_mutex in this flow.
do_dbs_timer is triggerred by a periodic timer event.
It first takes dbs_mutex and then takes cpu_hotplug lock in
cpufreq_driver_target().
Note the reverse order here compared to above. So, if this timer event happens
at right moment during cpu_down, system will deadlok.
Attached patch fixes the issue for both ondemand and conservative.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Now /sys/class/usb is dynamically created when we have something to put
in it, and removed when all devices go away.
Just trying to cut down on the clutter in sysfs...
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This moves the usb class devices that control the usbfs nodes to show up
in the proper place in the larger device tree.
No userspace changes is needed, this is compatible due to the symlinks
generated by the driver core.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This will allow for us to give endpoints a major/minor to create a
"usbfs2-like" way to access endpoints directly from userspace in an
easier manner than the current usbfs provides us.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Instead of a kobject, will make things easier in the future (don't know
what I was thinking when I did this originally...)
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Move <linux/usb_input.h> to <linux/usb/input.h> and remove some
redundant includes.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This moves header files for controller-specific platform data
from <linux/usb_XXX.h> to <linux/usb/XXX.h> to start reducing
some clutter.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This moves <linux/usb_cdc.h> to <linux/usb/cdc.h> to reduce some of the
clutter of usb header files.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This removes extraneous whitespace from the Ethernet/RNDIS gadget driver.
It's all space-at-EOL, spaces-before-tabs, or tabs-then-spaces.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Here is a patch (as720) adding an unusual_devs entry for the Nokia N80
mobile phone.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some usbserial functions returns -EINVAL if the port doesn't exist or if
it's not opened. However, the right error code for such situations is
-ENODEV.
Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds IXP465 into the list of known devices and
adds IXP425 and IXP465 to the list of devices that have cfr. This
is not described in the hardware documentation, but without
it driver won't work.
Workaround (#if 1) that seemed to get rid of lost
status irqs is disabled for IXP4XX as it caused freezes
during testing of control messages. No lost irqs are
visible on IXP4XX.
Driver survived tests running over night without any
visible problems.
Signed-off-by: Milan Svoboda <msvoboda@ra.rockwell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes compile errors when pxa2xx_udc is to be compiled
for ixp4xx platform.
Signed-off-by: Milan Svoboda <msvoboda@ra.rockwell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes limitation which prevents use of drivers that support
speeds different that full speed.
Signed-off-by: Milan Svoboda <msvoboda@ra.rockwell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
As pointed out by David Brownell, we know that IRQs are never
blocked when calling gs_close function. So the save/restore
IRQ flags are pointless.
Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When closing the device, the driver acquires/release twice the
port lock before/after waiting for the data to be completely
sent. Therefore it will dead lock.
This patch fixes it and also uses the generic scheduler services
for waiting for an event.
Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
If either the driver's open() method or try_module_get() fails, we need to
set 'tty->driver_data' and 'port->tty' to NULL in serial_open(), otherwise
we'll get an OOPS in usb_device_disconnect() when the device is disconnected.
Signed-off-by: Frank Gevaerts <frank.gevaerts@fks.be>
Acked-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a new driver for the Cypress CY7C63xxx mirco controller series.
It currently supports the pre-programmed CYC63001A-PC by AK Modul-Bus
GmbH. It's based on a kernel 2.4 driver (cyport) by Marcus Maul which I
ported to kernel 2.6 using sysfs. I intend to support more controllers
of this family (and more features) as soon as I get hold of the required
IDs etc. Please see the source code's header for more information.
Signed-off-by: Oliver Bock <o.bock@fh-wolfenbuettel.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This update contains one bug fix: some lines can come out truncated,
because of the safety cutoff. This happened because I forgot to update
the size when status packets began to be printed.
The rest is:
- Comments updates
- Allow snooping with pkmap on x86_64, which is cache-coherent
- Enlarge event buffers (certainly we can have a couple of pages)
- Add event counter
First touch upon usbmon for 2.6.18.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Al Borchers suggested to do this in his review of my previous patch.
I guess that I skipped this initially because of my visceral dislike
of sizeof(data). But in this case it seems well localized.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as707) improves the FSBR operation in uhci-hcd by turning it
off more quickly when it isn't needed. FSBR puts a noticeable load on a
computer's PCI bus, so it should be disabled as soon as possible when it
isn't in use. The patch leaves it running for only 10 ms after the last
URB stops using it, on the theory that this should be long enough for a
driver to submit another URB if it wants keep FSBR going.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as706) removes the private hc_inaccessible flag from
uhci-hcd. It's not needed because it conveys exactly the same
information as the generic HCD_FLAG_HW_ACCESSIBLE bit.
In its place goes a new flag recording whether the controller is dead.
The new code allows a complete device reset to resurrect a dead
controller (although usbcore doesn't yet implement such a facility).
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as705) contains a small set of updates for uhci-hcd written
mostly by Dave Brownell:
* Root hub suspend messages come out labeled as root hub messages;
PCI messages should only come out when the pci device suspends.
* Rename the reset() method to better match its init() role
* Behave more like the other HCDs by returning -ESHUTDOWN for root-hub
suspend/resume errors.
* When an URB fails, associate the message with the usb device not
the host controller (it still hides endpoint and direction)
From: David Brownell <david-b@pacbell.net>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as704) adds an unusual_devs entry for the Nikon DSC D70s,
which uses a different Product ID from the D70. It also moves the entry
for the DSC E2000 up in the list, to preserve the numerical ordering.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This adds the Apple MacBook product IDs for the Fn translation
to the usbhid.
Signed-off-by: Rene Rebe <rene@exactcode.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Including ehci-au1xxx.c on a non-Au1200 Alchemy only to have it throw
an error is stupid.
From: Ralf Baechle <ralf@linux-mips.org>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
While an Edgeport is allocating individual port structures, if kmalloc
returns NULL, the serial structure is freed and -ENOMEM, but the ports
allocated before the failure are not freed. This patch addresses that
condition.
Signed-off-by: Christopher Lund <docmax@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch extends the "option" driver with a few more devices, some of
which are actually connected to USB the "right" way -- as opposed to
doing it via PCMCIA and OHCI.
Signed-Off-By: Matthias Urlichs <smurf@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
See http://bugzilla.kernel.org/show_bug.cgi?id=6617.
This function dereference a __user pointer.
Signed-off-by: Philippe Retornaz <couriousous@mandriva.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as703) improves the error handling when a Set-Configuration
request fails. The old interfaces are all unregistered before the
request is sent, and if the request fails then we don't know what config
the device is using. So it makes no sense to leave actconfig pointing
to the old configuration with its invalid interfaces.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as702) makes usbhid use the new usb_reset_composite_device
API. Now HID interfaces can coexist with other interfaces on the same
device, and a reset can safely be requested by any of the drivers.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as701) modifies usb-storage to take advantage of the new
usb_reset_composite_device() API. Now we will be able to safely request
port resets even if other drivers are bound to a mass-storage device.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as700) modifies the hub driver to take advantage of the new
usb_reset_composite_device API. The existing code had special-case
calls stuck into usb_reset_device, just before and after the reset.
With the new version there's no need for special-case stuff; it all
happens naturally in the form of pre_reset and post_reset notifications.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as699) adds usb_reset_composite_device(), a routine for
sending a USB port reset to a device with multiple interfaces owned by
different drivers. Drivers are notified about impending and completed
resets through two new methods in the usb_driver structure.
The patch modifieds the usbfs ioctl code to make it use the new routine
instead of usb_reset_device(). Follow-up patches will modify the hub,
usb-storage, and usbhid drivers so they can utilize this new API.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Earlier work splitting the "usbnet" driver out into a core plus driver
modules was missing a blacklist entry for the Olympus R-1000; it must
not use the CDC Ethernet driver, only the "zaurus" support works with
it.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
From: Eric Sesterhenn <snakebyte@gmx.de>
This fixes coverity Bug #390.
With the following code
ret = ep->branch = balance(isp116x, ep->period, ep->load);
if (ret < 0)
goto fail;
the problem is that ret and balance are of the type int, and ep->branch is u16.
so the int balance() returns gets reduced to u16 and then converted to an int again,
which removes the sign. Maybe the following little c program can explain it better:
This is a driver to control the brightness of an Apple Cinema Display over
USB. It updates the local brightness value if the user presses a button on
the display.
Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch>
Cc: Oliver Neukum <oliver@neukum.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds support for Yost Engineering Inc's ServoCenter 3.1 USB
product to the ftdi_sio driver's device ID table. The PID was supplied
by Aaron Prose of Yost Engineering on the ftdi-usb-sio-devel list. The
PID 0xE050 matches the Windows INF files for this device.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Now that usbhid automatically applies HID_QUIRK_NOGET to keyboards and
mice, we no longer need the blacklist entries that were present for no
other purpose. This patch (as698) removes them.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
RNDIS devices don't get configured owing to a typo in
choose_configuration(). This patch from Giridhar Pemmasani fixes the
typo.
From: Giridhar Pemmasani <giri@lmc.cs.sunysb.edu>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2.6.16 introduces USB power budgeting in the Linux kernel, and since then, a
fair number of users have observed that some of their devices no longer work in
unpowered hubs (this is not a bug, the devices claim that they need more than
100mA).
The very least we can do is print an informational message to the kernel log
when this happens, otherwise it is not at all clear why the device was not
accepted.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Remove more log spamming from pegasus: stop talking to the device once we
see ENODEV reported. It may take a while before khubd notifies us.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Remove some silly messages and cast in stone "temporary" messages which
we keep around. Also, I am hesitant to remove the initialization retries
without having the hardware to test (anyone who was at KS04 has a spare?)
Signed-off-by: Pete Zaitcev <zaitcev@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
<zaitcev> I am taling about this: "if (disk->flags & GENHD_FL_UP) del_gendisk(disk);"
<zaitcev> If del_gendisk() undoes add_disk() like viro just said, why is it conditional?
<viro> huh?
<viro> add_disk() sets the damn flag
<zaitcev> So, I should not need to check ever
<viro> so the above is "if I've called add_disk(), call gendisk()"
<viro> which might be what you want, of course
<viro> but usually you know if you'd done add_disk() on that puppy anyway
In ub, nobody upstream should ever see half-constructed disks before
they were passed to add_disk. To that end, only add the struct lun to
the list on the path of no return. With that fix in place, we do
not need to test GENHD_FL_UP.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Wait for the scheduled work to finish before freeing memory, prevent oops.
http://bugzilla.kernel.org/show_bug.cgi?id=6596
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This updates the EHCI driver by adding an improved scheduler for the
transaction translators, found in USB 2.0 hubs and used for low and
full speed devices.
- adds periodic_tt_usecs() and some helper functions, which does
the same thing that "periodic_usecs" does, except on the other
side of the TT, i.e. it calculates the low/fullspeed bandwidth
usage instead of highspeed.
- adds a tt_available() function which is the new implementation
of what tt_no_collision() does ... while tt_no_collision() ensures
that each TT handles only 1 periodic transfer at a time (a very
pessimistic approach) this version instead tracks bandwidth and
allows each TT to handle as many transfers as will fit on each TT's
downstream bus (closer to best-case).
The new scheduler is selected by a config option, marked as EXPERIMENTAL
so it can be tested (and more broadly reviewed) for a while until it
seems safe to remove the original scheduler.
Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch uses completion timeout instead of a timer to implement
a timeout when submitting an URB.
It also put the task in interruptible state instead of an
uninterruptible one while waiting for the completion.
Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add a couple of supported devices into the help message.
It's a long story... I promised this comment changed to a user long ago,
so I'd like to have that promise kept. In reality though, nobody is
likely to read this anyway.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I'm going to throw schedule_work away, it's retarded. But for starters,
let's have it encapsulated.
Also, generic and whiteheat were both calling usb_serial_port_softint
and scheduled work. Only one was necessary.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Clean up the unicode handling in io_edgeport. Make get_string size-limited.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as693b) makes the usbtest driver report errors in the
isochronous bulk transfer tests instead of always returning 0. As an
arbitrary cutoff, an error is returned if more than 10% of the packet
transfers fail. It also stops a test immediately upon receiving an URB
submission error.
For a test harness, it's especially important to report when errors occur!
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as692) fixes a few memory leaks in some unimportant error
pathways of the gadgetfs driver.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as691) fixes a few errors in the AIO interface for the
gadgetfs driver. Now requests will complete properly instead of hanging.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
By the way I have to ask you to add new (vid,pid) pair to cp2101 driver.
This device is argussoft's avr in-system programmer AS3M,
http://atmel.argussoft.ru/hard.htm
it's based on cp2101 chip and works pretty well with the linux driver.
It could be used with argussoft's `asisp1109.exe'
(http://atmel.argussoft.ru/download/software/as-tools.soft/asisp.zip)
tool run under wine.
Signed-off-by: Vitja Makarov <vitja.makarov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
ctrl_complete functions acquires ctx->lock and tries to unlink
all queued urbs in case of errors through usb_unlink_urb func.
In its turn usb_unlink_urb calls, through the hcd driver,
usb_hcd_giveback_urb which calls ctrl_complete again. At this
time, ctx->lock is already taken by the same function.
Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as690) does the same thing for ISO TDs as as680 did for
non-ISO TDs: free them as they are used rather than all at once when an
URB is complete. At the same time it fixes a minor buglet (I'm not
aware of it ever affecting anyone): An ISO TD should be retired when its
frame is over, regardless of whether or not the hardware has marked it
inactive.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as689) stores the period for periodic transfers (interrupt
and ISO) in the queue header. This is necessary for proper bandwidth
tracking (not yet implemented). It also makes the scheduling of ISO
transfers a bit more rigorous, with checks for out-of-bounds frame
numbers.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as688) fixes a small race in uhci-hcd. Because ISO queues
aren't controlled by queue headers, they can't be unlinked. Only
individual URBs can. So whenever multiple ISO URBs are dequeued, it's
necessary to make sure the hardware is done with each one. We can't
assume that dequeuing the first URB will suffice to unlink the entire
queue.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as687) changes uhci-hcd to keep track of frame numbers as
full-sized integers rather than 11-bit values. This makes them a lot
easier to handle and makes it possible to schedule beyond a 2-second
window, should anyone ever want to do so.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch increases an arbitrary limit on the size of
individual isochronous packets submitted via usbfs. The
limit is still arbitrary, but it's now large enough to
support the maximum packet size used by high-bandwidth
isochronous transfers.
Signed-off-by: Micah Dowty <micah@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch removes the artificial 4088-byte limit that usbfs
currently places on Control transfers. The USB spec does not
specify a strict limit on the size of an entire control transfer.
It does, however, state that the data stage "follows the same
protocol rules as bulk transfers." (USB 2, 8.5.3)
The level of support for large control transfers in real host
controllers varies, but it's important to support at least 4K
transfers. Windows enforces a maximum control transfer size
of 4K, so there exists some hardware that requires a full 4096
byte data stage. Without this patch, we fall short of that by
8 bytes on architectures with a 4K page size, and it becomes
impossible to support such hardware with a user-space driver.
Since any limit placed on control transfers by usbfs would be
arbitrary, this patch replaces the PAGE_SIZE limit with the same
arbitrary limit used by bulk transfers.
Signed-off-by: Micah Dowty <micah@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some old Intel UHCI controllers have a bug that has shown up in a few
systems (the PIIX3 "Neptune" chip set). Until now there has not been
any simple way to work around the bug, but the lastest changes in
uhci-hcd have made it easy. This patch (as684) adds the work-around.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as683) re-implements Full-Speed Bandwidth Reclamation (FSBR)
properly. It keeps track of which endpoint queues have advanced, and
when none have advanced for a sufficiently long time, FSBR is turned
off. The next TD on each of the non-moving queues is modified to
generate an interrupt on completion, so that FSBR can be re-enabled as
soon as the hardware starts to make some progress.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as682) gets rid of the TD-removal list in uhci-hcd. It is
no longer needed because now TDs are not freed until we know the
hardware isn't using them. It also simplifies the code for adding and
removing TDs to/from URBs.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as681) moves some code for cleaning up after unlinked URBs
out of the general completion pathway into the unlinking pathway.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as680) frees non-isochronous TDs as they are used, rather
than all at once when an URB is complete. Although not a terribly
important change in itself, it opens the door to a later enhancement
that will reduce storage requirements by allocating only a limited
number of TDs at any time for each endpoint queue.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as679) combines the result routine for Control URBs with the
routine for Bulk/Interrupt URBs. Along the way I eliminated the
debugging printouts for Control transfers unless the debugging level is
set higher than 1. I also eliminated a long-unused (#ifdef'ed-out)
section that works around some buggy old APC BackUPS devices.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It seems to be relatively common for USB keyboards and mice to dislike
being polled for reports. Since there's no need to poll a keyboard or
a mouse, this patch (as685) automatically sets the HID_QUIRK_NOGET flag
for devices that advertise themselves as either sort of device with boot
protocol support.
This won't cure all the problems since some devices don't support the
boot protocol, but it's simple and easy and it should fix quite a few
problems.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Transposed lines of code in drivers/usb/input/hid-input.c causes the
capability bits for a new HID device to be set before quirks are applied
at configuration time. When an HID event is then sent up to the input
layer, it may then be discarded as irrelevant because the wrong
capability bit is set.
Further, the quirks for the Apple Mighty Mouse are not quite right: the
horizontal scrolling needs its axis reversed, and the left and center
buttons are transposed. Also, the mouse is labeled in the kernel with
its earlier name (I think) of Apple PowerMouse.
Steps to reproduce problem: Plug in an Apple Mighty Mouse. Note that
horizontal scrolling doesn't work at all, and in fact doesn't generate
any input events on /dev/input/eventN. Note also that pushing the
middle button performs the right button action, and vice versa. Once
you have the horizontal scrolling working, note that it is backward WRT
both to vertical scrolling and to common sense.
This patch maybe should be broken up, as it does address two problems.
The transposed code in hidinput_configure_usage() probably creates bugs
beyond just the Mighty Mouse. The rest of the patch renames POWERMOUSE
to MIGHTYMOUSE everywhere (which I *believe* is correct), fixes the
MIGHTYMOUSE quirk to swap the center and right mouse buttons, and adds a
new quirk HID_QUIRK_INVERT_HWHEEL also assigned to the MIGHTYMOUSE with
code in hidinput_hid_event() to implement it.
Signed-off-by: Bart Massey <bart@cs.pdx.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as676) fixes a small bug in uhci-hcd's enqueue routine. When
an URB is unlinked or gets an error and the completion handler queues
another URB for the same endpoint, the queue shouldn't be allowed to start
up again until the handler returns. Not even if the new URB is the only
one on its queue.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as675) simplifies uhci-hcd slightly by storing each endpoint's
type in the corresponding Queue Header structure.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The net2280 board has an annoying habit of surviving soft reboots with
interrupts enabled. This patch (as674) adds a shutdown routine to the
driver so that the board can be put in a quiescent state.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Unfortunately it looks like the transport entry for this subdriver was merged
into the protocol section, making this driver unusable :(
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
After some further testing with my flash device I realised that our current
probe doesn't always work (e.g. when no media is inserted).
Now that Peter Chubb's patch has simplified the detection of 99% of the HP CD
writers out there, we have a much smaller range of hardware to work with on
the shared device ID, so it should be possible to try some of the previous
probe options again: we just need to find another tester with a USBAT2-based HP
CD writer.
This patch hardcodes the flash detection until someone comes along with one of
these obscure CD drives. Note that these devices are extremely rare, so even if
we can't ever find a decent probe method, at least we will be supporting almost
all of the USBAT-based hardware out there.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use USB vendor and product IDs to determine whether the attached
device is a CDROM or a Flash device. Daniel Drake says that the
*same* vendor and product IDs for non-HP vendor ID could be either
flash or cdrom, so try to probe for them.
Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I've worked out what's going wrong. The scsi layer is now much
more likely to pass down scatterlists instead of plain buffers. So
you have to make sure that they're handled correctly. In one of the
changes along the way, usbat_write_block and friends stopped obeying
the srb->use_sg flag.
Anyway, with the appended patch, and the one I'm putting in the next email, it
all seems to work for the HP cd4e. Of course, someone's going to have
to test it with the flash drives as well....
This patch teaches the usbat_{read,write}_block functions to
obey the use_sg flag in the scsi-request.
Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Make inputs pollable using sysfs_notify and add support for the Phidget
InterfaceKit 0/16/16. Various cleanups.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Daniel Saakes <daniel@saakes.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We #include <linux/netdevice.h> only because <linux/etherdevice.h>
needed it, but didn't #include it itself. But that's been fixed now.
Signed-off-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Remove the check for NULL which makes no sense. Suggested by Al.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some hubs claim not to support port-power switching, and right now the
hub driver believes them and does not enable power to their ports.
However it turns out that even though they don't actually switch power,
they do ignore all events on a port until told to turn on the power!
This problem has been reported by several users.
This revised patch (as672b) makes the hub driver always try to turn on
port power to all hubs, regardless of what the hub descriptor says. It
also adds a comment explaining the need for this.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add support for MacBook touchpad in appletouch driver.
Thanks to Alex Harper for the informations.
Use u16 instead of int16_t in atp_is_geyser* functions.
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Nicolas Boichat <nicolas@boichat.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Prevent sending further output to a USB-serial console after the dongle is
disconnected, take care not to leak kref.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Prevent ENODEV on a /dev/ttyUSBx, used as a USB-serial console.
From: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Prevent NULL dereference when used as a USB-serial console.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Append Carriage-Returns after Line-Feeds, analogous to the serial driver.
From: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
In some systems we may have both a platform EHCI controller and PCI EHCI
controller. Previously we couldn't build the EHCI support as a module due
to conflicting module_init() calls in the code.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch contains the following possible cleanups:
- make needlessly global functions static
- function and struct declarations belong into header files
- make SiS_VCLKData const
- #if 0 the following unused global functions:
- sisusb.c: sisusb_writew()
- sisusb.c: sisusb_readw()
- sisusb_init.c: SiSUSB_GetModeID()
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
From: Arjan van de Ven <arjan@infradead.org>
Convert the semaphores-used-as-mutex to mutexes in the sisusb video driver;
this required manual checking due to the "return as locked" stuff in this
driver, but the ->lock semaphore is still used as mutex in the end.
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Cc: Thomas Winischhofer <winischhofer.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add support for detection and dworking with a ASIX 88178 based USB-Gigabit
adaptor. With the patch, it is detected and handled correctly by the asix
module.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This includes an MTU fixup which could affect larger packets with newer
Zaurii, described as http://bugzilla.kernel.org/show_bug.cgi?id=6286;
plus minor whitespace cleanup.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
this fixes the "duplicated text" bug. There's a modem that cannot cope
with large transfers and more than one urb in flight. This patch adds a
special case to the driver.
Signed-off-by: Oliver Neukum <oliver@neukum.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Keys on Yealink based phones will not function properly when using the
generic HID driver. This patch prevents the generic HID code from
grabbing the device before the regular yealink driver can get a grip on
it.
Signed-off-by: Henk Vergonet <Henk.Vergonet@gmail.com>
Signed-off-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
From: Paul Serice <paul@serice.net>
The workaround in commit f7201c3dcd
broke. The work around requires memory for DMA transfers for some
NVidia EHCI controllers to be below 2GB, but recent changes have
caused some DMA memory to be allocated before the DMA mask is set.
Signed-off-by: Paul Serice <paul@serice.net>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
During the recent "isa drivers using platform devices" discussion it was
pointed out that (ALSA) ISA drivers ran into the problem of not having
the option to fail driver load (device registration rather) upon not
finding their hardware due to a probe() error not being passed up
through the driver model. In the course of that, I suggested a seperate
ISA bus might be best; Russell King agreed and suggested this bus could
use the .match() method for the actual device discovery.
The attached does this. For this old non (generically) discoverable ISA
hardware only the driver itself can do discovery so as a difference with
the platform_bus, this isa_bus also distributes match() up to the driver.
As another difference: these devices only exist in the driver model due
to the driver creating them because it might want to drive them, meaning
that all device creation has been made internal as well.
The usage model this provides is nice, and has been acked from the ALSA
side by Takashi Iwai and Jaroslav Kysela. The ALSA driver module_init's
now (for oldisa-only drivers) become:
static int __init alsa_card_foo_init(void)
{
return isa_register_driver(&snd_foo_isa_driver, SNDRV_CARDS);
}
static void __exit alsa_card_foo_exit(void)
{
isa_unregister_driver(&snd_foo_isa_driver);
}
Quite like the other bus models therefore. This removes a lot of
duplicated init code from the ALSA ISA drivers.
The passed in isa_driver struct is the regular driver struct embedding a
struct device_driver, the normal probe/remove/shutdown/suspend/resume
callbacks, and as indicated that .match callback.
The "SNDRV_CARDS" you see being passed in is a "unsigned int ndev"
parameter, indicating how many devices to create and call our methods with.
The platform_driver callbacks are called with a platform_device param;
the isa_driver callbacks are being called with a "struct device *dev,
unsigned int id" pair directly -- with the device creation completely
internal to the bus it's much cleaner to not leak isa_dev's by passing
them in at all. The id is the only thing we ever want other then the
struct device * anyways, and it makes for nicer code in the callbacks as
well.
With this additional .match() callback ISA drivers have all options. If
ALSA would want to keep the old non-load behaviour, it could stick all
of the old .probe in .match, which would only keep them registered after
everything was found to be present and accounted for. If it wanted the
behaviour of always loading as it inadvertently did for a bit after the
changeover to platform devices, it could just not provide a .match() and
do everything in .probe() as before.
If it, as Takashi Iwai already suggested earlier as a way of following
the model from saner buses more closely, wants to load when a later bind
could conceivably succeed, it could use .match() for the prerequisites
(such as checking the user wants the card enabled and that port/irq/dma
values have been passed in) and .probe() for everything else. This is
the nicest model.
To the code...
This exports only two functions; isa_{,un}register_driver().
isa_register_driver() register's the struct device_driver, and then
loops over the passed in ndev creating devices and registering them.
This causes the bus match method to be called for them, which is:
int isa_bus_match(struct device *dev, struct device_driver *driver)
{
struct isa_driver *isa_driver = to_isa_driver(driver);
if (dev->platform_data == isa_driver) {
if (!isa_driver->match ||
isa_driver->match(dev, to_isa_dev(dev)->id))
return 1;
dev->platform_data = NULL;
}
return 0;
}
The first thing this does is check if this device is in fact one of this
driver's devices by seeing if the device's platform_data pointer is set
to this driver. Platform devices compare strings, but we don't need to
do that with everything being internal, so isa_register_driver() abuses
dev->platform_data as a isa_driver pointer which we can then check here.
I believe platform_data is available for this, but if rather not, moving
the isa_driver pointer to the private struct isa_dev is ofcourse fine as
well.
Then, if the the driver did not provide a .match, it matches. If it did,
the driver match() method is called to determine a match.
If it did _not_ match, dev->platform_data is reset to indicate this to
isa_register_driver which can then unregister the device again.
If during all this, there's any error, or no devices matched at all
everything is backed out again and the error, or -ENODEV, is returned.
isa_unregister_driver() just unregisters the matched devices and the
driver itself.
More global points/questions...
- I'm introducing include/linux/isa.h. It was available but is ofcourse
a somewhat generic name. Moving more isa stuff over to it in time is
ofcourse fine, so can I have it please? :)
- I'm using device_initcall() and added the isa.o (dependent on
CONFIG_ISA) after the base driver model things in the Makefile. Will
this do, or I really need to stick it in drivers/base/init.c, inside
#ifdef CONFIG_ISA? It's working fine.
Lastly -- I also looked, a bit, into integrating with PnP. "Old ISA"
could be another pnp_protocol, but this does not seem to be a good
match, largely due to the same reason platform_devices weren't -- the
devices do not have a life of their own outside the driver, meaning the
pnp_protocol {get,set}_resources callbacks would need to callback into
driver -- which again means you first need to _have_ that driver. Even
if there's clean way around that, you only end up inventing fake but
valid-form PnP IDs and generally catering to the PnP layer without any
practical advantages over this very simple isa_bus. The thing I also
suggested earlier about the user echoing values into /sys to set up the
hardware from userspace first is... well, cute, but a horrible idea from
a user standpoint.
Comments ofcourse appreciated. Hope it's okay. As said, the usage model
is nice at least.
Signed-off-by: Rene Herman <rene.herman@keyaccess.nl>
This patch (as721) makes dev_info and related macros print the device's
bus name if the device doesn't have a driver, instead of printing just a
blank. If the device isn't on a bus either... well, then it does leave
a blank space. But it will be easier for someone else to change if they
want.
Cc: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
We need to create the "compatible" symlinks that class_devices used to
create when they were in the class directories so that userspace does
not know anything changed at all.
Yeah, we have a lot of symlinks now, but we should be able to get rid of
them in a year or two... (wishful thinking...)
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Like the SUBSYTEM= key we find in the environment of the uevent, this
creates a generic "subsystem" link in sysfs for every device. Userspace
usually doesn't care at all if its a "class" or a "bus" device. This
provides an unified way to determine the subsytem of a device, regardless
of the way the driver core has created it.
Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is the first step in moving class_device to being replaced by
struct device. It allows struct device to export a dev_t and makes it
easy to dynamically create and destroy struct device as long as they are
associated with a specific class.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is needed for a future patch for the device code to create the
proper symlinks for devices that are "class devices".
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Hi, this patch converts semaphores to mutexes for Randy's firmware_class.
Signed-off-by: Laura Garcia Liebana <nevola@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This makes the driver model PM suspend debug messages more useful, by
(a) explaining what event is being sent, since not all suspend()
requests mean the same thing;
(b) reporting when a PM_EVENT_SUSPEND call is allowing the device
to issue wakeup events.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
To have a home for all hypervisors, this patch creates /sys/hypervisor.
A new config option SYS_HYPERVISOR is introduced, which should to be set
by architecture dependent hypervisors (e.g. s390 or Xen).
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell