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authorIngo Molnar <mingo@elte.hu>2010-10-13 15:44:24 +0200
committerIngo Molnar <mingo@elte.hu>2010-10-13 15:44:24 +0200
commit3d8a1a6a8af910cc2da566080d111e062a124ba6 (patch)
tree0c78b30a5c7aa083e215222989f982313c5141c0 /sound/usb/mixer.c
parent1b13fe6a6e9986dbc079cbb05090be75edbffa5d (diff)
parent5d0d71569e671239ae0d905ced9b65cd843f99ee (diff)
Merge branch 'amd-iommu/2.6.37' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into core/iommu
Diffstat (limited to 'sound/usb/mixer.c')
-rw-r--r--sound/usb/mixer.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index c166db0057d3..3ed3901369ce 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -2175,7 +2175,15 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
}
host_iface = &usb_ifnum_to_if(chip->dev, ctrlif)->altsetting[0];
- mixer->protocol = get_iface_desc(host_iface)->bInterfaceProtocol;
+ switch (get_iface_desc(host_iface)->bInterfaceProtocol) {
+ case UAC_VERSION_1:
+ default:
+ mixer->protocol = UAC_VERSION_1;
+ break;
+ case UAC_VERSION_2:
+ mixer->protocol = UAC_VERSION_2;
+ break;
+ }
if ((err = snd_usb_mixer_controls(mixer)) < 0 ||
(err = snd_usb_mixer_status_create(mixer)) < 0)