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| author | David Henningsson <david.henningsson@canonical.com> | 2013-10-16 23:10:31 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-10-17 14:38:44 +0200 |
| commit | 420f9739a62cdb027f5580d25c813501ff93aa6f (patch) | |
| tree | 85e0bb1cb001b99c5ac449e92c86e141706588f8 /include/linux/thinkpad_acpi.h | |
| parent | 1d198f26c98e6501659d741d530f7b65e4b7aec3 (diff) | |
| download | lwn-420f9739a62cdb027f5580d25c813501ff93aa6f.tar.gz lwn-420f9739a62cdb027f5580d25c813501ff93aa6f.zip | |
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>
Diffstat (limited to 'include/linux/thinkpad_acpi.h')
| -rw-r--r-- | include/linux/thinkpad_acpi.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/thinkpad_acpi.h b/include/linux/thinkpad_acpi.h new file mode 100644 index 000000000000..361de59a2285 --- /dev/null +++ b/include/linux/thinkpad_acpi.h @@ -0,0 +1,15 @@ +#ifndef __THINKPAD_ACPI_H__ +#define __THINKPAD_ACPI_H__ + +/* These two functions return 0 if success, or negative error code + (e g -ENODEV if no led present) */ + +enum { + TPACPI_LED_MUTE, + TPACPI_LED_MICMUTE, + TPACPI_LED_MAX, +}; + +int tpacpi_led_set(int whichled, bool on); + +#endif |