thinkpad-acpi: Add mute and mic-mute LED functionality

The LEDs are currently not visible to userspace, for security
reasons. They are exported through thinkpad_acpi.h for use by the
snd-hda-intel driver.

Thanks to Alex Hung <alex.hung@canonical.com> and Takashi Iwai
<tiwai@suse.de> for writing parts of this patch.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
David Henningsson
2013-10-16 23:10:31 +02:00
committed by Takashi Iwai
parent 1d198f26c9
commit 420f9739a6
3 changed files with 111 additions and 3 deletions

View File

@@ -1,7 +1,7 @@
ThinkPad ACPI Extras Driver
Version 0.24
December 11th, 2009
Version 0.25
October 16th, 2013
Borislav Deianov <borislav@users.sf.net>
Henrique de Moraes Holschuh <hmh@hmh.eng.br>
@@ -741,6 +741,9 @@ compiled with the CONFIG_THINKPAD_ACPI_UNSAFE_LEDS option enabled.
Distributions must never enable this option. Individual users that
are aware of the consequences are welcome to enabling it.
Audio mute and microphone mute LEDs are supported, but currently not
visible to userspace. They are used by the snd-hda-intel audio driver.
procfs notes:
The available commands are: