AMD SFH (Sensor Fusion Hub) is a solution running on MP2
(which is ARM core connected to x86 for processing sensor data).
AMD SFH uses HID over PCI bus to form the HID descriptors and
talks to HID clients like the monitor-sensor/iio-proxy. MP2 which
is exposed as a PCI device to the x86, uses mailboxes to talk to
MP2 firmware to send/receive commands.
Co-developed-by: Nehal Shah <Nehal-bakulchandra.Shah@amd.com>
Signed-off-by: Nehal Shah <Nehal-bakulchandra.Shah@amd.com>
Signed-off-by: Sandeep Singh <sandeep.singh@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add vivaldi HID driver. This driver allows us to read and report the top
row layout of keyboards which provide a vendor-defined (Google) HID
usage.
Signed-off-by: Sean O'Brien <seobrien@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The Glorious Model O mice (and also at least the Model O-, which is
driver-wise the same mouse) have a bug in the descriptor of HID
Report with ID 2. This report is used for Consumer Control buttons,
which can be mapped using the provided Windows only software.
Here is an excerpt from the original descriptor:
INPUT(2)[INPUT]
Field(0)
Flags( Constant Variable Absolute )
Field(1)
Flags( Constant Variable Absolute )
Field(2)
Flags( Constant Variable Absolute )
The issue is the Constant flag specified on all 3 fields, which
causes the hid driver to ignore changes in these fields and
essentialy causes the buttons to not work at all. The submitted driver
patches the descriptor to end up with the following:
INPUT(2)[INPUT]
Field(0)
Flags( Variable Relative )
Field(1)
Flags( Variable Relative )
Field(2)
Flags( Variable Relative )
The Constant bit is reset and the Relative bit has been set in
order to prevent repeat events when holding down the button.
Additionally, the device name is changed from the hardware-reported
"SINOWEALTH Wired Gaming Mouse" to "Glorious Model O" or "Glorious
Model D".
Signed-off-by: Samuel Čavoj <sammko@sammserver.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
MCP2221 is a USB HID to I2C/SMbus host bridge device. This
commit implements i2c and smbus host adapter support. 7-bit
address and i2c multi-message transaction is also supported.
Signed-off-by: Rishi Gupta <gupt21@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a driver to stop the extra "G" keys from sending F1 - F12 instead
making them send KEY_GKEY# and also make the non-functional M1 - M3 and MR
keys and the non-functional buttons below the LCD panel properly generated
key events.
Note the connect_mask and gkeys_settings_output_report variables may seem
unnecessary since they are always set to the same value, these are there in
preparation of adding support for the G, M and LCD keys on the G510 kbd.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a new hid driver for the Creative SB0540 IR receiver. This receiver
is usually coupled with an RM-1500 or an RM-1800 remote control.
The scrollwheels on the RM-1800 remote are not bound, as they are
labelled for specific audio controls that don't usually exist on most
systems. They can be remapped using standard Linux keyboard
remapping tools.
Signed-off-by: Bastien Nocera <bnocera@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
U2F Zero supports custom commands for blinking the LED and getting data
from the internal hardware RNG. Expose the blinking function as a LED
device, and the internal hardware RNG as an HWRNG so that it can be used
to feed the enthropy pool.
Signed-off-by: Andrej Shadura <andrew.shadura@collabora.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This enables the power and equals keys on the Macally ikey keyboard.
Based on the Cougar gaming keyboard HID driver, which uses the same
vendor ID.
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
This driver adds support for loading Intel Integrated Sensor Hub (ISH) firmware
from host file system to ISH SRAM and start execution.
At power-on, the ISH subsystem shall boot to an interim Shim loader-firmware,
which shall expose an ISHTP loader device.
The driver implements an ISHTP client that communicates with the Shim ISHTP
loader device over the intel-ish-hid stack, to download the main ISH firmware.
Signed-off-by: Rushikesh S Kadam <rushikesh.s.kadam@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Nick Crews <ncrews@chromium.org>
Tested-by: Jett Rink <jettrink@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Refactor and extract UC-Logic tablet initialization and parameter
discovery into a module. For these tablets, the major part of parameter
discovery cannot be separated from initialization so they have to be in
the same module. Define explicitly and clearly what possible quirks the
tablets may have to make the driver implementation easier and simpler.
Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
As hid-uclogic has a lot of report descriptors already and there's going
to be more, move them out of the driver code and into a separate module.
Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Add support for ViewSonic PD1011 signature (display) pad, which is also
sold by Signotec under a different name.
Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
The USB report descriptor sent by the Maltron L90 keyboard is invalid,
causing the media key reports not to be accepted.
This patch adds a driver which uses a report fixup to replace the
descriptor.
Signed-off-by: William Whistler <wtbw@wtbw.co.uk>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
This is a driver to fix input mapping and add LED & force feedback
support for the "BigBen Interactive Kid-friendly Wired Controller
PS3OFMINIPAD SONY" gamepad with USB id 146b:0902. It was originally
sold as a PS3 accessory and makes a very nice gamepad for Retropie.
Signed-off-by: Hanno Zulla <kontakt@hanno.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cougar 500k Gaming Keyboard have some special function keys that
make the keyboard stop responding once pressed. Implement the custom
vendor interface that deals with the extended keypresses to fix.
The bug can be reproduced by plugging in the keyboard, then pressing the
rightmost part of the spacebar.
Signed-off-by: Daniel M. Lambea <dmlambea@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
There are two ways to connect the Steam Controller: directly to the USB
or with the USB wireless adapter. Both methods are similar, but the
wireless adapter can connect up to 4 devices at the same time.
The wired device will appear as 3 interfaces: a virtual mouse, a virtual
keyboard and a custom HID device.
The wireless device will appear as 5 interfaces: a virtual keyboard and
4 custom HID devices, that will remain silent until a device is actually
connected.
The custom HID device has a report descriptor with all vendor specific
usages, so the hid-generic is not very useful. In a PC/SteamBox Valve
Steam Client provices a software translation by using hidraw and a
creates a uinput virtual gamepad and XTest keyboard/mouse.
This driver intercepts the hidraw usage, so it can get out of the way
when the Steam Client is in use.
Signed-off-by: Rodrigo Rivas Costa <rodrigorivascosta@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This adds a new driver for the Redragon Asura keyboard. The Asura
keyboard contains an error in the HID descriptor which causes all
modifier keys to be mapped to left shift. Additionally, we suppress
the creation of a second, not working, keyboard device.
Signed-off-by: Robert Munteanu <rombert@apache.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add Google hammer HID driver. This driver allow us to control hammer
keyboard backlight and support future features.
Signed-off-by: Wei-Ning Huang <wnhuang@google.com>
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This is driver for usb touchpad found on HP Pavilion x2 10-p0xx laptop. On this
device keyboard and touchpad connected as a single usb device with two
interfaces: keyboard, which exposes ordinary keys and second interface is
touchpad which also contains FlightMode button and audio mute led (which
physically placed on keyboard for some reason).
Initially, this touchpad works in mouse emulation mode, this driver will switch
it to touchpad mode, which can track 5 fingers and can report coordinates for
two of them.
Signed-off-by: Alexandrov Stansilav <neko@nya.ai>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a hid-jabra driver to the list of special drivers in hid-core. The
driver prevents vendor defined HID usages (FF00-FFFF) in Jabra devices
from being mapped to input events, that become unintended mouse events
in the X11 server.
Signed-off-by: Niels Skou Olsen <nolsen@jabra.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
usbhid has a list of dynamic quirks in addition to a list of static quirks.
There is not much USB specific in that, so move this part of the module
in core so we can have one central place for quirks.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This driver does 2 things:
- Apply the MULTI_INPUT quirk to create separate joypad device nodes
for each one of the 4 connectors.
- Rename the input devices so that their names are different, and allow
users to recognise which device corresponds to which physical port,
including the SNES (Mario Paint) Mouse.
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The ITE8595 keyboard uses the HID_GD_RFKILL_BTN usage code
from the Wireless Radio Controls Application Collection Microsoft
has defined for Windows 8 and later.
However it has a quirk, when the rfkill hotkey is pressed it does
generate a report for the collection, but the reported value is
always 0. Luckily it is the only button in this collection / report,
and it sends a report on release only, so receiving a report means the
button was pressed.
This commit adds a hid-ite driver which watches for the Wireless Radio
Controls Application Collection report and then reports a KEY_RFKILL event,
ignoring the value, making the rfkill on this keyboard work.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The Accutouch 2216 is reporting BTN_LEFT/BTN_MOUSE rather than BTM_TOUCH
in it's capabilities, which is what user space expects a touchscreen
device to report. This is causing udev to consider the device to be a
"VMware's USB mouse" rather than as a touchscreen, which results in a
mouse cursor being displayed in Weston.
This patch adds a special driver for the device to correct the
capabilities reported.
Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
These adapters allow pre-USB Sun keyboards to be connected to USB-only
machines, but include the wrong maximum keycode in their report descriptor,
making most of the keys present on Sun keyboards but not 101-key PC
keyboards nonfunctional.
This patch implements a quirk that overrides the maximum keycode in the
report descriptor.
Signed-off-by: Jonathan Tomer <jktomer@google.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This adds support for the THQ uDraw tablet for the PS3, as
4 separate device nodes, so that user-space can easily consume
events coming from the hardware.
Note that the touchpad two-finger support is fairly unreliable,
and a right-click can only be achieved with a two-finger tap
with the two fingers slightly apart (about 1cm should be enough).
Tested-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a new module named hid-mf that implements force feedback for game
controller adapters manufactured by Mayflash. Currently only the PS3 adapter is
supported, other adapters still need to be tested.
Signed-off-by: Marcel Hasler <mahasler@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The ISH transport layer (ishtp) is a bi-directional protocol implemented
on the top of PCI based inter processor communication layer. This layer
offers:
- Connection management
- Flow control with the firmware
- Multiple client sessions
- Client message transfer
- Client message reception
- DMA for RX and TX for fast data transfer
Refer to Documentation/hid/intel-ish-hid.txt for
overview of the functionality implemented in this layer.
Original-author: Daniel Drubin <daniel.drubin@intel.com>
Reviewed-and-tested-by: Ooi, Joyce <joyce.ooi@intel.com>
Tested-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Rann Bar-On <rb6@duke.edu>
Tested-by: Atri Bhattacharya <badshah400@aim.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Now that support for ThingM blink(1) was merged into the hid-led driver
the dedicated driver for this device can be removed.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch migrates the USB LED driver to the HID subsystem.
Supported are Dream Cheeky Webmail Notifier / Friends Alert
and Riso Kagaku Webmail Notifier.
Benefits:
- Avoid using USB low-level calls and use the HID subsystem instead
(as this device provides a USB HID interface)
- Use standard LED subsystem instead of proprietary sysfs entries,
this allows e.g. to use the device with features like triggers
Successfully tested with a Dream Cheeky Webmail Notifier and a
Riso Kagaku Webmail Notifier compatible device.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The C-Media CM6533 is a USB audio chip featuring it's jack detection
capability.The device originates an interrupt transfer via HID interface each
time when a jack event occurs. The purpose of this patch is to handle hid raw
events to keep the operating system informed of user interactions.
Signed-off-by: Ben Chen <ben_chen@bizlinktech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Pull HID updates from Jiri Kosina:
"Highlights:
- Intel Skylake Win8 precision touchpads support fixes/improvements
from Mika Westerberg
- Lenovo Yoga 2 quirk from Ritesh Raj Sarraf
- potential uninitialized buffer access fix in HID core from Richard
Purdie
- Wacom Intuos and Wacom Cintiq 2 support improvements from Jason
Gerecke and Ping Cheng
- initiation of sysfs deprecation process for most of the roccat
drivers, from the roccat support maintiner Stefan Achatz
- quite a few device ID / quirk additions and small fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (30 commits)
HID: logitech: Add support for G29
HID: logitech: Simplify wheel detection scheme
HID: wacom: Call 'wacom_query_tablet_data' only after 'hid_hw_start'
HID: wacom: Fix ABS_MISC reporting for Cintiq Companion 2
HID: wacom: Remove useless conditions from 'wacom_query_tablet_data'
HID: wacom: fix Intuos wireless report id issue
HID: fix some indenting issues
HID: wacom: Expect 'touch_max' touches if HID_DG_CONTACTCOUNT not present
HID: wacom: Tie cached HID_DG_CONTACTCOUNT indices to report ID
HID: roccat: Fixed resubmit: Deprecating most Roccat sysfs attributes
HID: wacom: Report full pressure range for Intuos, Cintiq 13HD Touch
HID: wacom: Add support for Cintiq Companion 2
HID: multitouch: Fetch feature reports on demand for Win8 devices
HID: sensor-hub: Add quirk for Lenovo Yoga 2 with ITE Chips
HID: usbhid: Fix for the WiiU adapter from Mayflash
HID: corsair: boolify struct k90_led.removed
HID: corsair: Add Corsair Vengeance K90 driver
HID: hid-input: allow input_configured callback return errors
HID: multitouch: Add suffix for HID_DG_TOUCHPAD
HID: i2c-hid: Fill in physical device providing HID functionality
...
This patch implements a HID driver for the Corsair Vengeance K90 keyboard.
It fixes the behaviour of the keys using incorrect HID usage codes and exposes
the macro playback mode and current profile to the user space through sysfs
attributes. It also adds two LED class devices controlling the "record" LED and
the backlight.
Signed-off-by: Clément Vuchener <clement.vuchener@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This gamepad advertise 5 absolute axis while 4 are actually used.
The second Z axis shows some garbage, so it has to be ignored by HID.
The first Z axis and the Rz one are actually Rx and Ry. Remap them.
We could also just remap and ignore the axis in .input_mapping(). I
went ahead with .report_fixup() first, so here it is.
Reported-by: Orivej Desh <orivej@gmx.fr>
Tested-by: Orivej Desh <orivej@gmx.fr>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Most of the entries are aligned with TABs, fix those which are not.
Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
HID Sensor Spec defines two usage ids for custom sensors
HID_USAGE_SENSOR_TYPE_OTHER_CUSTOM (0x09, 0xE1)
HID_USAGE_SENSOR_TYPE_OTHER_GENERIC(0x09, 0xE2)
In addition the standard also defines usage ids for custom fields.
The purpose of these sensors is to extend the functionality or provide a way to
obfuscate the data being communicated by a sensor. Without knowing the mapping
between the data and its encapsulated form, it is difficult for an driver to
determine what data is being communicated by the sensor. This allows some
differentiating use cases, where vendor can provide applications. Since these
can't be represented by standard sensor interfaces like IIO, we present these
as fields with
- type (input/output)
- units
- min/max
- get/set value
In addition an dev interface to transfer report events. Details about this
interface is described in /Documentation/hid/hid-sensor.txt. Manufacturers
should not use these ids for any standard sensors, otherwise the the
product/vendor id can be added to black list.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Sandeep Singh