On Mon, Sep 27, 2004 at 03:48:28AM +1000, Jonathan Gray wrote:
> On Sun, Sep 26, 2004 at 03:38:00PM +0200, Alexandre Ratchov wrote:
> > The following diff adds midi support to the eap(4) driver (from
> > netbsd). I don't know if it works and i can't test it (i dont own
> > such hardware). You can try it at your own risk, feel free to
> > send me comments and/or dmesg.
>
> Needed some additional bits see below.

thank you for the diff, i've forgot to include "midi.h", so my
patch is doing nothing... i need more coffie.

> While this works I was getting strange clipping like noises at a constant
> interval while playing oggs with ogg123 when the kernel had eap midi
> support, I wasn't accessing the midi port at the time.
>
> I guess this means the eap midi code doesn't handle interrupts like
> it should?

i don't know; are you getting clipping-like noises even if you
never open the midi port? i mean, when you power-on the machine
and then you play an ogg?

> Apart from that accessing my external MT-32 synth seemed to work fine.
> Some larger patches made the MT-32 complain about an overflowed buffer
> I'm not quite sure what to blame for that one. They were patches
> designed specifically for an MT-32 though.

some midi devices are not fast enough to handle a large amount of
data. If you send several sysex messages, waiting between
messages may help.

--
Alexandre