MIDI with snd_cmi.ko in FreeBSD 7.0-PRERELEASE

Mario Lobo mlobo at digiart.art.br
Thu Feb 14 22:10:23 UTC 2008


I know this has been asked here before but all the answers I could find 
referred to older freebsd versions. 

I have a pcm0: <CMedia CMI8738> port 0xac00-0xacff irq 19 at device 5.0 
and it has a midi interface (which is fully functional).
When I had 6.2, MIDI was working fine. I had /dev/sequencer, etc.... The 
devices showed up, but now they're gone.

Peeking through cmi.c, I found  TODO: MIDI. 

BUT i also found:

static DEFINE_CLASS(cmi_mpu, cmi_mpu_methods, 0);
static void cmi_midiattach(struct sc_info *sc)

and mpu init functions.

After a long googling session, I found that some people managed to get it 
working  by "loading a separate module (midi.ko ?? or mpu401.ko??)" but I 
could not find any info on how they compiled those separetly or made them 
work. Nor any other specifics on the subject.

I tried both device midi and device mpu401 on the kernel but none was 

The reason for that is that I use Ardour (great studio) but I am unable to 
record midi, which is the only thing missing to use it fully.

Would anyone have a direction for me to research further?

If I rewrite this driver with a new name, what should I do include it in a 
kernel compilation?

Mario Lobo
FreeBSD since version 2.2.8 [not Pro-Audio.... YET!!] (99,7% winedows FREE)

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