[linux-audio-user] alsa /dev/sequencer oss compatability

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Subject: [linux-audio-user] alsa /dev/sequencer oss compatability
From: Craig Maloney (cmaloney_AT_physics.ucsb.edu)
Date: Thu Jan 16 2003 - 18:20:47 EET


Hi all. I have an on motherboard es1371 (which appears to be working
fine, although I'm not using it for audio). Can't seem to get the midi
working.

Here's the skinny... relevant output of lsmod:

----------------------------------------------
snd-seq-midi 3136 0 (autoclean) (unused)
snd-seq-oss 22080 0 (autoclean)
snd-seq-midi-event 2792 0 (autoclean) [snd-seq-midi snd-seq-oss]
snd-seq 32812 2 (autoclean) [snd-seq-midi snd-seq-oss
snd-seq-midi-event]
snd-card-ens1371 9408 0
snd-pcm 46176 0 [snd-card-ens1371]
snd-timer 9056 0 [snd-seq snd-pcm]
snd-rawmidi 11456 0 [snd-seq-midi snd-card-ens1371]
snd-seq-device 3744 0 [snd-seq-midi snd-seq-oss snd-seq
snd-rawmidi]
snd-ac97-codec 22848 0 [snd-card-ens1371]
snd 23336 2 [snd-seq-midi snd-seq-oss
snd-seq-midi-event snd-seq snd-card-ens1371 snd-pcm snd-timer
snd-rawmidi snd-seq-device snd-ac97-codec]
soundcore 3556 4 [snd]
-----------------------------------------------

$ ls -la /dev/sequencer
crw-rw---- 1 root audio 14, 1 Mar 14 2002 /dev/sequencer
------------------------------------------------

$ ls -la /proc/asound/dev
total 0
dr-xr-xr-x 2 root root 0 Jan 13 21:57 .
dr-xr-xr-x 5 root root 0 Jan 13 21:57 ..
crw-rw---- 1 root audio 116, 0 Jan 13 22:21 controlC0
crw-rw---- 1 root audio 116, 8 Jan 13 22:21 midiC0D0
crw-rw---- 1 root audio 116, 24 Jan 13 22:21 pcmC0D0c
crw-rw---- 1 root audio 116, 16 Jan 13 22:21 pcmC0D0p
crw-rw---- 1 root audio 116, 17 Jan 13 22:21 pcmC0D1p
crw-rw---- 1 root audio 116, 1 Jan 13 22:21 seq
crw-rw---- 1 root audio 116, 33 Jan 13 22:21 timer
-----------------------------------------------------------

presumably snd-seq-oss is the /dev/sequencer compatability layer (which
I loaded explicitly). Neither playmidi nor rosegarden can seem to open
/dev/sequencer. playmidi error:
-------------------------------------------------
playmidi: No playback device found
------------------------------------------------

Do I misunderstand the setup? I am presuming that when I load
snd-seq-oss, that it redirects /dev/sequencer to and from the alsa
sequencer and the alsa sequencer is presumably hooked up to alsa
raw-midi which presumably points to the joystick port on the es1371. Is
this right (I'm not so sure -- count the occurences of the word
"presumably in the preceding ;) )? If so, does anyone have any idea why
it's not working?

Thanks in advance.
Cheers,
Craig


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