New USB MIDI driver for FreeBSD
Hans Petter Selasky
hselasky at c2i.net
Tue Apr 24 20:54:17 UTC 2007
On Tuesday 24 April 2007 22:15, Rasmus Kaj wrote:
> >>>>> "HPS" == Hans Petter Selasky <hselasky at c2i.net> wrote on 2006-08-27:
> HPS> During the past week I have been working on USB MIDI support for
> HPS> FreeBSD. I choose the simplest approach, and that was to create
> HPS> a raw/direct MIDI device.
> Hi! Thanks for giving me some hope regarding MIDI on FreeBSD again!
> HPS> svn --username anonsvn --password anonsvn \
> HPS> checkout svn://svn.turbocat.net/i4b
> What version of FreeBSD was this supposed to work with? I was able to
> run it with releng_6 as of about a week ago, but not talk to my midi
> device , so I thought I'd try it with current. Unfortunatley,
> there seems to have been some changes (in bus_setup_intr and
> cam_sim_alloc, possibly more) in current that this code does not
Currently FreeBSD 6.x stable. You can get it working with FreeBSD 7.x also,
but you need to work a little bit then.
> Is there a more up-to-date version somewhere else? Should I go back
> to releng_6 and try to insert some "magic numbers" (device id) for my
> device? Or is (relevant parts of) this included in current by now?
> Maybe current just needs some device ids?
No, the SVN version is the latest.
> By the way, what does the MIDI support have in common with the ISDN
Not much, except that there are USB ISDN adapters :-)
By the way, when you go into the "FreeBSD.usb" folder you don't install any
ISDN stuff. Also don't forget editing and running the "install_uaudio.sh".
I'm just looking forward till all of my code gets committed to FreeBSD. Then
you don't have to worry any more.
>  I've got a "MIDI Mate", it is a simple gateway between a USB
> connector in one end an a single pair (in / out) of midi connectors in
> the other, that identifies as follows on FreeBSD current:
Same here, but there are some notes. When I implemented the USB MIDI support
there was no MIDI API in the kernel, so I created my own. That means you get
some raw devices, /dev/umidiX.X, which I have created some utilities for in
my SVN repo.
So there might be some work to do, if you want to use your MIDI mate with
ordinary MIDI applications.
> ugen0: <Ego Systems Inc XP MIDI mate, class 0/0, rev 1.10/1.01, addr
> 2> on uhub1
> Unknown USB device: vendor 0x0a92 product 0x1000 bus uhub1
Do a "svn update", make a new package, install it, and compile a new kernel.
If you use FreeBSD 7.x, then:
In /sys/dev/usb/usb_port.h, use the following:
/* preliminary fix for a bug in msleep on FreeBSD,
* which cannot sleep with Giant:
#define msleep(i,m,p,w,t) _sleep(i,(((m) == &Giant) ? \
NULL : &(m)->mtx_object),p,w,t)
After this patch you have to insert a NULL argument, to all bus_setup_intr()
functions you find in the files /sys/dev/usb/*pci.c like shown below ?
error = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_TTY,
- si_intr, sc, &ih);
+ NULL, si_intr, sc, &ih);
Also please find attached the "/usr/src/sys/dev/sound/usb/uaudioxxx"
and "/usr/src/sys/dev/sound/pcm/mixerxxx" files you need.
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