Jaroslav Kysela wrote: > On Wed, 3 Apr 2002, Peter Enderborg wrote: > > > I have tryed to get some answer from Jaroslav about subdevices on midi. > > Im trying to write a driver for midisport 8x8/s and that have 9 midi > > ports. On my hack to figure out the protocol I use virmidi to handle the > > interface to alsa. But virmidi only have four subdevices per device. I > > You can set up to eight virmidi devices (snd_midi_devs parameter controls > this count). On rawmidi side, there is 16 rawmidi substreams (subdevices) > per one virmidi device. These subdevices are used for event merging > (write) and coping (read). On sequencer side, there is one client and > one port connected to virmidi device. > > > need to see the driver for a midi interface that using all the 16 > > subdevices. Since I don't get answer from Jaroslav i guess he don't have > > the time or my question is stupid. But can someone help me out? Where > > should I look? > > There are two ways: > > 1) we can add a new mode to virmidi code which suppress copying and > merging and connects more sequencer ports per a sequencer client > to rawmidi subdevices to handle such devices > 2) without any change - simply use more than one virmidi card and connect > your code to more clients: >
That is what I do now. But it is not pretty. My plan is to do a real driver not a virmidi user. > > modprobe snd-virmidi snd_index=1,2 snd_enable=1,1 snd_midi_devs=8,8 > > (use index values as you wish) > Have you done that? This is what I get. [root@pescadero pme]# /sbin/modprobe snd-virmidi snd_enable=1,1 snd_midi_devs=8,8 /lib/modules/2.4.16/misc/snd-virmidi.o: init_module: No such device Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters /lib/modules/2.4.16/misc/snd-virmidi.o: insmod /lib/modules/2.4.16/misc/snd-virmidi.o failed /lib/modules/2.4.16/misc/snd-virmidi.o: insmod snd-virmidi failed [root@pescadero pme]# /sbin/modprobe snd-virmidi snd_enable=1,1 snd_midi_devs=8 /lib/modules/2.4.16/misc/snd-virmidi.o: init_module: No such device Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters /lib/modules/2.4.16/misc/snd-virmidi.o: insmod /lib/modules/2.4.16/misc/snd-virmidi.o failed /lib/modules/2.4.16/misc/snd-virmidi.o: insmod snd-virmidi failed [root@pescadero pme]# /sbin/modprobe snd-virmidi snd_enable=1,1 snd_midi_devs=4,4 [root@pescadero pme]# I also get the same with 5. > > In this case, you should have available this routing table: > > sequencer (client:port) rawmidi (card:device:subdevice) > 72:0 1:0:any > 73:0 1:1:any > .... .... > 79:0 1:7:any > 80:0 2:0:any > .... ... > 87:0 2:7:any > > Jaroslav > > ----- > Jaroslav Kysela <[EMAIL PROTECTED]> > Linux Kernel Sound Maintainer > ALSA Project http://www.alsa-project.org > SuSE Linux http://www.suse.com > > _______________________________________________ > Alsa-devel mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/alsa-devel -- foo! _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
