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authorDaniel Mack <daniel@caiaq.de>2010-09-02 05:13:15 -0400
committerTakashi Iwai <tiwai@suse.de>2010-09-02 05:58:37 -0400
commit7b6717e144de6592e614fd7fc3b914b6bf686a9d (patch)
tree14a5a0040455fc98136a7cdb6f8ec883d7d118c4 /sound/usb/mixer.c
parent2bfc96a127bc1cc94d26bfaa40159966064f9c8c (diff)
ALSA: usb-audio: Assume first control interface is for audio
For devices with more than one control interface, let's assume the first one contains the audio controls. Unfortunately, there is no field in any of the descriptors to tell us whether a control interface is for audio or MIDI controls, so a better check is not easy to implement. On a composite device with audio and MIDI functions, for example, the code currently overwrites chip->ctrl_intf, causing operations on the control interface to fail if they are issued after the device probe. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/mixer.c')
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