Daniel Mack wrote:
> git clone -b snd-usb git://github.com/zonque/linux.git
> The device complies to the UAC1 standard but hides that fact with
> proprietary descriptors.
>
> + {
> + .ifnum = 2,
> + .type = QUIRK_MIDI_STANDARD_INTERFACE
> + },
That quirk requires standard descriptors.
For some reason, this device doesn't even have the Roland-specific MIDI
descriptor. Try this instead:
{
.ifnum = 2,
.type = QUIRK_MIDI_FIXED_ENDPOINT,
.data = & (const struct snd_usb_midi_endpoint_info) {
.out_cables = 0x0001,
.in_cables = 0x0001
}
},
Regards,
Clemens
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