USB audio device testing: "Audio Advantage Micro" made by Turtle Beach

[Torfinn Ingolfsen]

A friend of mine have bought this neat little USB Audio device, called
"Audio Advantage Micro" made by Turtle Beach. It is the size of an USB
memory stick, and have a headphone minijack and a blue led. Naturally, I
asked to borrow it and tested it on my machines.

It works nicely in my Mac mini with headphones connected.

My testing machine runs FreeBSD 5.4-stable:
root at kg-work# uname -a
FreeBSD kg-work.kg4.no 5.4-STABLE FreeBSD 5.4-STABLE #3: Fri Jul  8
14:26:44 CEST 2005     root at kg-work.kg4.no:/usr/obj/usr/src/sys/SS51G 
i386 r

Just connecting the device gives the expected result (in
/var/log/messages):
Aug 24 22:20:11 kg-work kernel: ugen0: C-Media INC. USB Audio, rev
1.10/0.10, addr 3 Aug 24 22:33:47 kg-work kernel: ugen0: at uhub2 port 2
(addr 3) disconnected Aug 24 22:33:47 kg-work kernel: ugen0: detached

Ok, then I do 'kldload snd_uaudio' and try to attach the device again:
Aug 25 19:30:15 kg-work kernel: uaudio0: C-Media INC. USB Audio, rev
1.10/0.10, addr 3
Aug 25 19:30:15 kg-work kernel: uaudio0: audio rev
1.00
Aug 25 19:30:15 kg-work kernel: pcm1: <USB Audio> on uaudio0
Aug 25 19:30:15 kg-work kernel: record channel supported format list
invalid
Aug 25 19:30:15 kg-work kernel: pcm1: chn_init(pcm1:record:0)
failed: err = 19
Aug 25 19:30:15 kg-work kernel: pcm1:
pcm_chn_create(ua_chan, -1, 0xc2398b80) failed

'cat /dev/sndstat' shows:
root at kg-work# cat /dev/sndstat
FreeBSD Audio Driver (newpcm)
Installed devices:
pcm0: <SiS 7012> at io 0xb400, 0xb800 irq 18 bufsz 16384 kld snd_ich
(1p/1r/4v channels duplex default) pcm1: <USB Audio> at addr ? (1p/0r/1v
channels duplex)

(pcm0 is my internal soundcard, just disregard it)

I start xmms, change output device (and mixer) to pcm1 and try to play,
but it won't.
/var/log/messages shows:
Aug 25 19:39:19 kg-work kernel: uaudio: This device can't play in
rate=44100.

Is there anything else I should test before returning this device to my
friend?

Hmm, wasn't there some usb audio patches (or audio patches) on this list
a while ago? are they usable on 5.4-stable?
-- 
Regards,
Torfinn Ingolfsen,
Norway