At Thu, 04 Feb 2010 18:44:48 +0200, Ozan Çağlayan wrote:
Hi,
We have a laptop here (a local brand) which has a mute button with a LED. Currently the mute button works correctly but the led is non-functional.
I've played through hda-analyzer and found out that it's enabled when you enable gpio3 and click out_dir. Clicking out_dir again and again switches it on and off.
There's a mute led stuff in patch_sigmatel, sigmatel_spec has gpio_led and gpio_polarity information but alc_spec doesn't have.
How should we hook/patch that information into the codec?
This can be rather controlled in a different way, such as GPIO.
For example, if it's a HP machine, usually one of GPIO line corresponds to the mute LED (sometimes it mutes the speaker via BIOS).
Takashi