Ivica Bukvic wrote: > However, I am a bit confused, since this feature with /dev/midi stuff > worked like a charm just a couple weeks ago (ver. 0.9.1). So, did > something change dramatically since?
No. The USB MIDI driver has behaved in this way since 0.9.0rc4. > Can you also point me in the right direction where I can see a simple > ALSA code to accessing the both of the MIDI raw ports? alsa-lib/test/rawmidi.c does some operations with both OSS and ALSA ports. When using two ports, you'd call snd_rawmidi_open() twice and then have two handles, similar to two file handles. alsa-lib/test/control.c enumerates rawmidi devices. BTW: Are you soure you want to use rawmidi ports? Many software synthesizers create sequencer ports only. > P.S. One thing I just realized is that there is something rather unclear > to me in the explanation generously provided by Clemens: > > > /dev/midi0 -> card 0, device 0, subdevice 0 > > /dev/amidi0 -> card 0, device 1, subdevice 0 > > /dev/midi1 -> card 1, device 0, subdevice 0 > > /dev/amidi1 -> card 1, device 1, subdevice 0 > > /dev/midi2 -> card 2, device 0, subdevice 0 > > /dev/amidi2 -> card 2, device 1, subdevice 0 > > since none of the amidi devices does not work on my setup (see my last > e-mail for more info) and it seems as if it should. Your two ports are subdevices 0 and 1 of card 1, device 0. /dev/amidi1 points to device 1 which doesn't exist. > Furthermore, what happens when the midi interface has more than 2 I/O > ports? If the ports are subdevices of one device, only the first can be accessed with the OSS /dev/midiX file. If each port is a seperate device, the first two ports can be accessed with /dev/midiX and /dev/amidiX. Drivers for multiport interfaces usually use the first alternative (one device with subdevices) because there is a limit of 8 rawmidi devices per card. HTH Clemens ------------------------------------------------------- This SF.net email is sponsored by: ValueWeb: Dedicated Hosting for just $79/mo with 500 GB of bandwidth! No other company gives more support or power for your dedicated server http://click.atdmt.com/AFF/go/sdnxxaff00300020aff/direct/01/ _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
