miltiple midi input ports

Tom Schouten tom at
Thu Jan 11 09:00:57 CET 2001

On Thu, 11 Jan 2001, Tom Schouten wrote:

> hi,
> i have the following problem:
> when i use multiple midi-in ports, the midiin object only receives
> messages from the first port. output works fine to the other ports
> though..
> i found this line in s_linux_midi_io.c in function 
> int midi_instat(MIDIPort *mp)   
> FD_SET(mproot->devhandle,&midi_rfds);
> which i thought was the problem, since mproot is the first port and the
> function doesnt use the *mp argument supplied, so i changed it to 
> FD_SET(mp->devhandle,&midi_rfds);

of course, the next line has to be corrected too, so

  return select(mproot->devhandle+1,&midi_rfds,NULL,NULL,&null_tv);


  return select(mp->devhandle+1,&midi_rfds,NULL,NULL,&null_tv);

and then it works fine!


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