Re: Ego Systems (ESI) M4U: midi notes will only be played if previous notes have ended

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Jacco Kramer wrote:
> When I play a single note it is played by the synthesizer connected to it.
> However, if I use a sequencer to play notes only the first one is played
> (the lights on the M4U flash though, as if it was sending a midi event),
> unless there's a 'silence' between two notes.

Please show the output of "lsusb -v" for this device.

It's possible that the M4U does not have an input buffer as big as it
claims it has.  As a workaround, try to change line 921 or so of
usbmidi.c from
        ep->max_transfer = usb_maxpacket(umidi->chip->dev, pipe, 1);
to
        ep->max_transfer = 4;


HTH
Clemens

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