From: Takashi Iwai Date: Mon, 11 Jan 2016 13:57:56 +0000 (+0100) Subject: ALSA: doc: Update option descriptions for snd-usb-audio X-Git-Tag: v4.9.8~2370^2~86 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1f5e35636cc2737ccf1f67815cb33b978621f0f6;p=platform%2Fkernel%2Flinux-rpi3.git ALSA: doc: Update option descriptions for snd-usb-audio The autoclock and quirk_alias options have been added. Signed-off-by: Takashi Iwai --- diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt index 48148d6..fc53ccd 100644 --- a/Documentation/sound/alsa/ALSA-Configuration.txt +++ b/Documentation/sound/alsa/ALSA-Configuration.txt @@ -1910,6 +1910,12 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. - Default: 0x0000 ignore_ctl_error - Ignore any USB-controller regarding mixer interface (default: no) + autoclock - Enable auto-clock selection for UAC2 devices + (default: yes) + quirk_alias - Quirk alias list, pass strings like + "0123abcd:5678beef", which applies the existing + quirk for the device 5678:beef to a new device + 0123:abcd. This module supports multiple devices, autoprobe and hotplugging. @@ -1919,6 +1925,9 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. NB: ignore_ctl_error=1 may help when you get an error at accessing the mixer element such as URB error -22. This happens on some buggy USB device or the controller. + NB: quirk_alias option is provided only for testing / development. + If you want to have a proper support, contact to upstream for + adding the matching quirk in the driver code statically. Module snd-usb-caiaq --------------------