4c865aecae55b9f37cb94e78e49ba042ae245ee6 - kernel/msm

commit	4c865aecae55b9f37cb94e78e49ba042ae245ee6	[log] [tgz]
author	Takashi Iwai <tiwai@suse.de>	Wed Jun 05 08:35:26 2013 +0200
committer	chrmhoffmann <chrmhoffmann@gmail.com>	Sun Apr 05 10:18:23 2020 +0200
tree	4848ac9c048f35579c868649521d67ddbf4a827b
parent	8271658a20715ddd93bb2018973a4e69dfd9dc18 [diff]

ALSA: usb-audio - Fix invalid volume resolution on Logitech HD webcam c270

commit 11e7064f35bb87da8f427d1aa4bbd8b7473a3993 upstream.

USB audio driver spews an error message when probing Logitech HD
webcam c270:
  ALSA mixer.c:1300 usb_audio: Warning! Unlikely big volume range (=6144), cval->res is probably wrong.
  ALSA mixer.c:1304 usb_audio: [5] FU [Mic Capture Volume] ch = 1, val = 1536/7680/1

Obviously the device needs a fixed volume resolution (cval->res = 384)
like other Logitech devices.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=821735

Reported-and-tested-by: Cristian Rodríguez <crrodriguez@opensuse.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

sound/usb/mixer.c[diff]

1 file changed

tree: 4848ac9c048f35579c868649521d67ddbf4a827b