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ALSA: sound/usb: fix UAC1 regression

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Commit 23caaf19b ("ALSA: usb-mixer: Add support for Audio Class v2.0")
broke support for Class1 devices due to two faulty changes. This patch
fixes it.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Reported-and-Tested-by: The Source <thesourcehim@gmail.com>
Cc: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Daniel Mack
2010-05-08 11:24:56 +02:00
committed by Takashi Iwai
parent 27762b2ce1
commit 5e68888356
2 changed files with 2 additions and 2 deletions
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2
include/linux/usb/audio.h
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@@ -244,7 +244,7 @@ struct uac_selector_unit_descriptor {
static inline __u8 uac_selector_unit_iSelector(struct uac_selector_unit_descriptor *desc)
{
__u8 *raw = (__u8 *) desc;
return raw[desc->bLength - 1];
return raw[9 + desc->bLength - 1];
}
/* 4.3.2.5 Feature Unit Descriptor */