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Henrique de Moraes Holschuh c7ac6291ea thinkpad-acpi: disable volume control 
Disable volume control by default.  It can be enabled at module load
time by a module parameter (volume_control=1).

The audio control mixer that thinkpad-acpi interacts with is fully
functional without any drivers, and operated by hotkeys.

The idea behind the console audio control is that the human operator
is the only one that can interact with it.  The ThinkVantage suite in
Windows does not allow any software-based overrides, and only does OSD
(on-screen-display) functions.

The Linux driver will, with the addition of the ALSA interface, try to
follow and enforce the ThinkVantage UI design:

The user is supposed to use the keyboard hotkeys to interact with the
console audio control.  The kernel and the desktop environment is
supposed to cooperate to provide proper user feedback through
on-screen-display functions.

Distros are urged to not to enable volume control by default.
Enabling this must be a local admin's decision.  This is the reason
why there is no Kconfig option.

Keep in mind that all ThinkPads have a normal, main mixer (AC97 or
HDA) for regular software-based audio control.  We are not talking
about that mixer here.

Advanced users are, of course, free to enable volume control and do as
they please.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Lorne Applebaum <lorne.applebaum@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
 		2009-12-15 23:57:35 -05:00
..
accessibility
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acpi Merge branch 'thinkpad-2.6.32' into release 2009-11-25 00:43:08 -05:00
amba
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ata sata_fsl: Split hard and soft reset 2009-11-19 18:18:17 -05:00
atm net: Make setsockopt() optlen be unsigned. 2009-09-30 16:12:20 -07:00
auxdisplay
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base PM: fix irq enable/disable in runtime PM code 2009-11-29 16:51:27 +01:00
block aoe: prevent cache aliases 2009-12-01 16:32:20 -08:00
bluetooth fix memory leak in fixed btusb_close 2009-11-14 12:57:08 -08:00
cdrom sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
char tty_port: handle the nonblocking open of a dead port corner case 2009-11-30 16:38:25 -08:00
clocksource
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connector connector: Fix incompatible pointer type warning 2009-10-06 01:39:51 -07:00
cpufreq [CPUFREQ] Fix stale cpufreq_cpu_governor pointer 2009-11-17 23:15:04 -05:00
cpuidle cpuidle: always return with interrupts enabled 2009-10-29 07:39:31 -07:00
crypto crypto: padlock-aes - Use the correct mask when checking whether copying is required 2009-11-03 10:32:03 -05:00
dca
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dio
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dma shdma: fix initialization error handling 2009-11-22 12:10:10 -07:00
edac amd64_edac: fix CECCs reporting 2009-11-04 14:04:06 +01:00
eisa
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firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-11-30 13:58:23 -08:00
firmware iSCSI/iBFT: use proper address translation 2009-10-05 12:05:40 -07:00
gpio gpio: Langwell GPIO driver bugfixes 2009-12-01 16:32:19 -08:00
gpu Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel 2009-11-30 13:57:19 -08:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2009-10-13 10:10:33 -07:00
hwmon hwmon: (adt7475) Fix sysfs file names 2009-11-16 12:45:40 +01:00
i2c Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2009-11-30 14:50:44 -08:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6 2009-11-30 14:02:34 -08:00
idle
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ieee1394 headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
ieee802154 ieee802154: dont leak skbs in ieee802154_fake_xmit() 2009-11-19 13:16:21 -08:00
infiniband headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
input Input: i8042 - add Dell Vostro 1320, 1520 and 1720 to the reset list 2009-12-02 15:41:33 -08:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2009-11-18 14:54:45 -08:00
leds leds-gpio: fix possible crash on OF device unbinding 2009-11-16 11:50:42 +00:00
lguest headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
macintosh powerpc/pmac: Fix issues with sleep on some powerbooks 2009-10-14 16:58:35 +11:00
mca
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md md: revert incorrect fix for read error handling in raid1. 2009-12-01 17:30:59 +11:00
media drivers/media/dvb/dvb-core/dvb_frontend.c: needs semaphore.h 2009-12-01 16:32:19 -08:00
memstick memstick: move dev_dbg 2009-09-24 07:21:05 -07:00
message headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
mfd mfd: Correct WM831X_MAX_ISEL_VALUE 2009-12-01 11:24:19 +01:00
misc at24: Use timeout also for read 2009-11-26 09:22:33 +01:00
mmc [ARM] pxamci: call mmc_remove_host() before freeing resources 2009-12-02 22:58:19 +08:00
mtd ARM: Fix warning in sa1100-flash.c 2009-11-16 16:13:35 +00:00
net Merge branch 'security' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2009-11-30 16:47:16 -08:00
nubus
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of of: Remove nested function 2009-10-15 09:58:27 -06:00
oprofile oprofile: warn on freeing event buffer too early 2009-10-09 21:32:05 +02:00
parisc mm: replace various uses of num_physpages by totalram_pages 2009-09-22 07:17:38 -07:00
parport sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
pci Fix handling of the HP/Acer 'DMAR at zero' BIOS error for machines with <4GiB RAM. 2009-11-19 13:42:02 -08:00
pcmcia PM / yenta: Split resume into early and late parts (rev. 4) 2009-11-03 10:54:58 +01:00
platform thinkpad-acpi: disable volume control 2009-12-15 23:57:35 -05:00
pnp ACPI: remove acpi_device.flags.hardware_id 2009-09-25 15:09:48 -04:00
power Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2009-09-23 03:49:27 +04:00
pps pps: events reporting fix up 2009-11-12 07:26:01 -08:00
ps3
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rapidio
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regulator regulator: Initialise wm831x structure pointor for ISINK driver 2009-12-02 19:37:16 +00:00
rtc rtc-x1205: reset clock to sane state after power failure 2009-12-01 16:32:20 -08:00
s390 [S390] sclp: undo quiesce handler override on resume 2009-11-13 15:45:03 +01:00
sbus const: make block_device_operations const 2009-09-22 07:17:25 -07:00
scsi [SCSI] fix crash when disconnecting usb storage 2009-11-26 10:04:22 -06:00
serial tty/of_serial: add missing ns16550a id 2009-11-30 16:38:44 -08:00
sfi SFI: remove __init from sfi_verify_table 2009-10-03 01:16:12 -04:00
sh
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sn
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spi SPI: spi_txx9: Fix bit rate calculation 2009-12-02 23:58:32 +00:00
ssb ssb-pcmcia: Fix 32bit register access in early bus scanning 2009-11-10 16:21:12 -05:00
staging Staging: update TODO files 2009-11-30 16:39:42 -08:00
tc
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telephony
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thermal acpi: thermal: Add EOL to the trip_point_N_type strings 2009-11-05 17:33:24 -05:00
uio uio: pm_runtime_disable is needed if failed 2009-11-13 11:36:00 +09:00
usb USB: Add support for Mobilcom Debitel USB UMTS Surf-Stick to option driver 2009-11-30 16:43:17 -08:00
uwb headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
video VIDEO: Correct use of request_region/request_mem_region 2009-12-02 23:58:32 +00:00
virtio virtio: order used ring after used index read 2009-10-29 08:50:37 +10:30
vlynq drivers/vlynq/vlynq.c: fix resource size off by 1 error 2009-09-24 07:21:05 -07:00
w1 ds2482: Discard obsolete detect method 2009-10-04 22:53:41 +02:00
watchdog [PATCH] rc32434_wdt: fix compilation failure 2009-12-02 12:47:24 +00:00
xen headers: remove sched.h from poll.h 2009-10-04 15:05:10 -07:00
zorro
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Kconfig
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Makefile Merge git://git.infradead.org/mtd-2.6 2009-09-23 10:07:49 -07:00