USB sound driver status was diffrent from 8-current and 7.2-RELEASE

[MIHIRA Sanpei Yoshiro]

Hi.

I'm using USB audio device(*1) under 8-current and 7.2-RELEASE.

*1 Kyo-On DIGI(sorry,this page was writtin in Japanese)
http://www.area-powers.jp/product/usb_product/product/kyo-on/u1soundt4.html

But sound driver status was diffrent from 8-current and 7.2-RELEASE

[7.2-RELEASE]
support recording and playback

uaudio0: <vendor 0x0d8c USB Audio, class 0/0, rev 1.10/0.10, addr 2> on uhub1
uaudio0: audio rev 1.00
pcm0: <USB Audio> on uaudio0
uhid1: <vendor 0x0d8c USB Audio, class 0/0, rev 1.10/0.10, addr 2> on uhub1

[8-current]
only support recording, No playback!!
dmesg
ugen0.2: <ABC> at usbus0
uaudio0: <ABC product 0x0006, class 0/0, rev 1.10/0.10, addr 2> on usbus0
uaudio0: No playback!
uaudio0: Record: 48000 Hz, 2 ch, 16-bit S-LE PCM format
uaudio0: No midi sequencer
pcm0: <USB audio> on uaudio0
uhid0: <ABC product 0x0006, class 0/0, rev 1.10/0.10, addr 2> on usbus0

cat /dev/sndstat
FreeBSD Audio Driver (newpcm: 32bit 2007061600/i386)
Installed devices:
pcm0: <USB audio> at ? kld snd_uaudio [GIANT] (0p:0v/1r:1v channels default)

How can I support playback on 8-current.

Cheers
---
MIHIRA, Sanpei Yoshiro
Tokyo, Japan.