diff options
Diffstat (limited to 'sound/usb/mixer.c')
| -rw-r--r-- | sound/usb/mixer.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index 70dfdd22102e..d5cc315a5eb4 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -1012,6 +1012,17 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval, cval->res = 384; } break; + + case USB_ID(0x1130, 0x1620): /* Logitech Speakers S150 */ + /* This audio device has 2 channels and it explicitly requires the + * host to send SET_CUR command on the volume control of both the + * channels. 7936 = 0x1F00 is the default value. + */ + if (cval->channels == 2) + snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, + (cval->control << 8) | 2, 7936); + break; + } } |