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authorAndreas Steinmetz <ast@domdv.de>2020-03-31 14:25:54 +0200
committerTakashi Iwai <tiwai@suse.de>2020-03-31 14:34:28 +0200
commit5c6cd7021a05a02fcf37f360592d7c18d4d807fb (patch)
tree40c16ff0a6cf645181f67595b42a670ddac8b132 /sound/pci/hda
parentb6f69c795547f59ddf1db17cddbd2b9a15c656ed (diff)
downloadlinux-5c6cd7021a05a02fcf37f360592d7c18d4d807fb.tar.bz2
ALSA: usb-audio: Fix case when USB MIDI interface has more than one extra endpoint descriptor
The Miditech MIDIFACE 16x16 (USB ID 1290:1749) has more than one extra endpoint descriptor. The first extra descriptor is: 0x06 0x30 0x00 0x00 0x00 0x00 As the code in snd_usbmidi_get_ms_info() looks only at the first extra descriptor to find USB_DT_CS_ENDPOINT the device as such is recognized but there is neither input nor output configured. The patch iterates through the extra descriptors to find the proper one. With this patch the device is correctly configured. Signed-off-by: Andreas Steinmetz <ast@domdv.de> Link: https://lore.kernel.org/r/1c3b431a86f69e1d60745b6110cdb93c299f120b.camel@domdv.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda')
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