Howdies

Just to let you all know that I finally found the problem. The unit
mysteriously stopped responding again, and in amongst rebooting,
starting, stopping, rmmodding, tearing my hair out, cursing, modprobing,
plugging it into a windows box, trying to find a windows program to do
the equivalent of "cat /dev/snd/midiC2D0 >aaaaaargh.mid" I discovered
that if the metal sleeve around the USB plub for the device touched the
metal around the USB socket in the device, it would restart itself. Hmm.
Odd.

Then I noticed that in some cases I got a small shock if I touched the
metal on the usb cable plug. So it looks like my hardware somehow
develops a charge on the usb cable which prevents the unit from
receiving data, and as soon as I discharge it the unit reacts to
incoming messages.

OTOH, I've been thinking that if ALSA can't send a message to a usb
device, surely it should do something more, er, catastrophic than
logging "urb status -32" to the kernel log? Should I log this as an ALSA
bug?

bye
John



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