John Anderson wrote:
> I enabled DUMP_PACKETS in usbmidi.c and this is the last few lines of
> output from dmesg:
> 
> ALSA /usr/src/alsa-driver-1.0.11/usb/usbmidi.c:215: sending packet: [ 0b b0 
> 07 5d ]
> ALSA /usr/src/alsa-driver-1.0.11/usb/usbmidi.c:190: urb status -32
> 
> What does urb status -32 mean?

Endpoint stalled.  This means that the device has detected some
(unknown) error on this USB channel and that it refuses to receive any
further data until the driver resets this condition.  It seems
snd-usb-midi doesn't handle this correctly.

Does this error happen with the first packet that is sent?

I guess re-plugging the device doesn't help?


Regards,
Clemens


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