diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-06-07 12:22:15 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-07 12:22:15 +0200 |
| commit | 5f4457a4f62cc9d78e04c0eb12ff0540899aad89 (patch) | |
| tree | 0b973d527ea6b2ae31e08da0746b4965a3c5a6d8 /sound/usb/usbmidi.c | |
| parent | 9b94b3a19b13e094c10f65f24bc358f6ffe4eacd (diff) | |
| parent | b87297fb405ef13cac375f202d114323b076a56d (diff) | |
Merge branch 'linus' into x86/cpu
Diffstat (limited to 'sound/usb/usbmidi.c')
| -rw-r--r-- | sound/usb/usbmidi.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index 26bad373fe6..2fb35cc22a3 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c @@ -1778,8 +1778,18 @@ int snd_usb_create_midi_interface(struct snd_usb_audio* chip, umidi->usb_protocol_ops = &snd_usbmidi_novation_ops; err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); break; - case QUIRK_MIDI_RAW: + case QUIRK_MIDI_FASTLANE: umidi->usb_protocol_ops = &snd_usbmidi_raw_ops; + /* + * Interface 1 contains isochronous endpoints, but with the same + * numbers as in interface 0. Since it is interface 1 that the + * USB core has most recently seen, these descriptors are now + * associated with the endpoint numbers. This will foul up our + * attempts to submit bulk/interrupt URBs to the endpoints in + * interface 0, so we have to make sure that the USB core looks + * again at interface 0 by calling usb_set_interface() on it. + */ + usb_set_interface(umidi->chip->dev, 0, 0); err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); break; case QUIRK_MIDI_EMAGIC: |