[alsa-devel] Problem with CME UF5 MIDI keyboard master volume slider

Clemens Ladisch cladisch at fastmail.net
Fri Aug 10 16:55:23 CEST 2007

I wrote:
> Damon Chaplin wrote:
> > Is it possible to workaround the problem?
> Only by changing the driver.  Please wait until tomorrow.

Well, the driver should now continue after receiving bad data.

To be able to convert the data sent by the CME UFx to a real master
volume message, I need to know the data format at a lower level.
Please change line 58 of sound/usb/usbmidi.c to
and recompile the driver, then show the entries that are written to the
(debug) system log when a master volume message is received.


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