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-rw-r--r--sound/usb/usbmixer.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/usb/usbmixer.c b/sound/usb/usbmixer.c
index 9efcfd08d747..c998220b99c6 100644
--- a/sound/usb/usbmixer.c
+++ b/sound/usb/usbmixer.c
@@ -1071,6 +1071,15 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, unsig
1071 channels = (ftr[0] - 7) / csize - 1; 1071 channels = (ftr[0] - 7) / csize - 1;
1072 1072
1073 master_bits = snd_usb_combine_bytes(ftr + 6, csize); 1073 master_bits = snd_usb_combine_bytes(ftr + 6, csize);
1074 /* master configuration quirks */
1075 switch (state->chip->usb_id) {
1076 case USB_ID(0x08bb, 0x2702):
1077 snd_printk(KERN_INFO
1078 "usbmixer: master volume quirk for PCM2702 chip\n");
1079 /* disable non-functional volume control */
1080 master_bits &= ~(1 << (USB_FEATURE_VOLUME - 1));
1081 break;
1082 }
1074 if (channels > 0) 1083 if (channels > 0)
1075 first_ch_bits = snd_usb_combine_bytes(ftr + 6 + csize, csize); 1084 first_ch_bits = snd_usb_combine_bytes(ftr + 6 + csize, csize);
1076 else 1085 else