From: Wu Fengguang Date: Sat, 22 Nov 2008 01:40:55 +0000 (+0800) Subject: ALSA: hda - document the ELD proc interface X-Git-Tag: firefly_0821_release~15381^2~45^2~22 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a5fcf89eff2372b50f2d47fbb3e1f3090f044ee3;p=firefly-linux-kernel-4.4.55.git ALSA: hda - document the ELD proc interface Describe what ELD proc interface provides and how to fix incorrect values. Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai --- diff --git a/Documentation/sound/alsa/Procfile.txt b/Documentation/sound/alsa/Procfile.txt index f738b296440a..bba2dbb79d81 100644 --- a/Documentation/sound/alsa/Procfile.txt +++ b/Documentation/sound/alsa/Procfile.txt @@ -153,6 +153,16 @@ card*/codec#* Shows the general codec information and the attribute of each widget node. +card*/eld#* + Available for HDMI or DisplayPort interfaces. + Shows ELD(EDID Like Data) info retrieved from the attached HDMI sink, + and describes its audio capabilities and configurations. + + Some ELD fields may be modified by doing `echo name hex_value > eld#*`. + Only do this if you are sure the HDMI sink provided value is wrong. + And if that makes your HDMI audio work, please report to us so that we + can fix it in future kernel releases. + Sequencer Information ---------------------