>Hi, > >My ALSA sound driver uses an MPU401 for MIDI support, >and the OSS emulation module snd-seq-oss works well >with the snd-mpu401-uart module. However, there are no >native ALSA sequencer devices: > >[root@wittsend src]# cat /proc/asound/seq/clients >Client info > cur clients : 3 > peak clients : 3 > max clients : 192
you've just demonstrated the existence of the ALSA sequencer. >Client 0 : "System" [Kernel] > Port 0 : "Timer" (Rwe-) > Port 1 : "Announce" (R-e-) > Connecting To: 63:0 >Client 63 : "OSS sequencer" [Kernel] > Port 0 : "Receiver" (-we-) > Connected From: 0:1 > Output pool : > Pool size : 1024 > Cells in use : 0 > Peak cells in use : 1024 > Alloc success : 12370 > Alloc failures : 0 >Client 64 : "External MIDI 0" [Kernel] > Port 0 : "MIDI 0-0" (RWeX) > there is no "ALSA Sequencer" as a specific client. each client listed is a client of the ALSA sequencer. client 63 is a special client that handles OSS sequencer data. >Since the OSS layer plays music, it seems logical to >assume that all the hardware bit-twiddling has been >done already. I am therefore assuming that I just need >to register some native ALSA sequencer device. Could >someone point me towards a simple example somewhere, >please? I have tried looking at the opl3_seq.c file >but it seems to be doing a LOT more than just >registering a device. what is it that you want to do? if you want to send midi out of the MPU401 external midi port, just connect up a program like pmidi to client 64, port 0. --p _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
