Guys, I am forwarding this to you as well from the alsa-user list since right now I am looking for example code how to access the 2nd set of I/O MIDI ports on my Midisport 2x2 (seems that having /dev/midi and /dev/midi1 does not work any more for some reason, even though it worked just fine in 0.9.1). Any help on this issue is greatly appreciated!
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. Furthermore, what happens when the midi interface has more than 2 I/O ports? Ico -----Original Message----- Thanks for your help! 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? 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? Thanks! Ico > For multiport USB MIDI interfaces, the ports are subdevices of one midi > device. This isn't a problem with programs using the ALSA API, but when > you want to use the OSS-compatible /dev/midiX ports, you cannot access > any subdevices other than the first directly. > > The mapping of OSS MIDI devices to ALSA MIDI devices is as follows: > /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 > ... > > > If this is the case, then how do I access the second port. > > You can load the snd-virmidi driver to create a virtual soundcard having > its own MIDI device, and then connect this port to the 2x2's second MIDI > port (with aconnect). > > > In this situation the hdsp is not in use, so midisport assumes the 2nd > > card position. > > ... > > options snd-usb-audio vid=0x763 pid=0x1001 index=2 > > It shouldn't, because the above options line tells the driver to load at > index 2. And if you'd use 0x1110 as product ID, it actually would. ;-) > (0x1001 is the ID of the device without firmware.) > > > 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
