[PATCH v3 0/1] Corsair Vengeance K90 driver

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I have split the special functions between backlight and macro functions. This should make it easier to test new devices. I think the macro functions will only be reused with the K95. While backlight is more common feature, though I have no idea it is done with other Corsair hardware.

I have changed most sysfs attributes and LEDs so that the current value is queried from the hardware instead of tracking events. I started this way when I did not know how to read the value, but I think it is better done this way when I can. I don't know how to read the state of the record LED, so this one still use events to update the state.

I removed the color from the LEDs name. I understand it is only necessary when having LEDs with several colors. This way the names will stay the same across different hardware with different backlight color. I don't think it is an useful information here.

I also added event for the MR (macro record) button and profile switch buttons. I think that userspace program may want to know about these events. For example for using profile keys to start some configuration program.

changes in v3:
- query the hardware instead of tracking the value with events when possible (except record_led)
- added quirks for activating special functions (macro functions and backlight)
- allocation  of led name use kzalloc instead of devm_kzalloc (free mem when initialization failed)
- renamed led devices (without colors)
- added key codes for record and profile keys

Clément Vuchener (1):
  Add Corsair Vengeance K90 driver

 Documentation/ABI/testing/sysfs-driver-hid-corsair |  15 +
 drivers/hid/Kconfig                                |  10 +
 drivers/hid/Makefile                               |   1 +
 drivers/hid/hid-core.c                             |   1 +
 drivers/hid/hid-corsair.c                          | 673 +++++++++++++++++++++
 drivers/hid/hid-ids.h                              |   3 +
 6 files changed, 703 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-driver-hid-corsair
 create mode 100644 drivers/hid/hid-corsair.c

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2.4.3

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