| commit | d3e6e5956687eacc1c462e8dd6f3c66a2b6e8c1b | |
| author | Takashi Iwai <tiwai@suse.de> | |
| Wed, 16 Aug 2017 12:18:37 +0000 (16 14:18 +0200) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Fri, 25 Aug 2017 00:12:19 +0000 (24 17:12 -0700) | ||
| tree | 80f7b916b54b5d8feeede4ecd81105a7380e6301 | treesnapshot (tar.gz zip) |
| parent | f39f086d541f8cef13977fe51308ab805e14b3c3 | commitdiff |
ALSA: usb-audio: Add mute TLV for playback volumes on C-Media devices
commit 0f174b3525a43bd51f9397394763925e0ebe7bc7 upstream.
C-Media devices (at least some models) mute the playback stream when
volumes are set to the minimum value. But this isn't informed via TLV
and the user-space, typically PulseAudio, gets confused as if it's
still played in a low volume.
This patch adds the new flag, min_mute, to struct usb_mixer_elem_info
for indicating that the mixer element is with the minimum-mute volume.
This flag is set for known C-Media devices in
snd_usb_mixer_fu_apply_quirk() in turn.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196669
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 0f174b3525a43bd51f9397394763925e0ebe7bc7 upstream.
C-Media devices (at least some models) mute the playback stream when
volumes are set to the minimum value. But this isn't informed via TLV
and the user-space, typically PulseAudio, gets confused as if it's
still played in a low volume.
This patch adds the new flag, min_mute, to struct usb_mixer_elem_info
for indicating that the mixer element is with the minimum-mute volume.
This flag is set for known C-Media devices in
snd_usb_mixer_fu_apply_quirk() in turn.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196669
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| sound/usb/mixer.c | diffblobblamehistory | |
| sound/usb/mixer.h | diffblobblamehistory | |
| sound/usb/mixer_quirks.c | diffblobblamehistory |