Re: Experimental USB audio support

[Patrick Shirkey <pshirkey@boosthardware.com>]

As you can tell I'm very excited about this.

Here's some preliminary stuff.

#dmesg
----
usb.c: registered new driver audio
hub.c: USB new device connect on bus1/1, assigned device number 3
ALSA usbaudio.c:1134: 3:1:1 : AS_GENERAL descriptor not found
ALSA usbaudio.c:1134: 3:2:1 : AS_GENERAL descriptor not found
devfs: devfs_register(): device already registered: "unknown"
ALSA usbaudio.c:1191: 3:4:1 : frame size 3 doesn't match ALSA 24bit
sample format
ALSA usbaudio.c:1134: 3:4:2 : AS_GENERAL descriptor not found
ALSA usbaudio.c:1191: 3:4:3 : frame size 3 doesn't match ALSA 24bit
sample format
ALSA usbaudio.c:1191: 3:5:1 : frame size 3 doesn't match ALSA 24bit
sample format
ALSA usbaudio.c:1134: 3:5:2 : AS_GENERAL descriptor not found
ALSA usbaudio.c:1191: 3:5:3 : frame size 3 doesn't match ALSA 24bit
sample format
devfs: devfs_register(): device already registered: "unknown"
ALSA usbaudio.c:1191: 3:7:1 : frame size 3 doesn't match ALSA 24bit
sample format
ALSA usbaudio.c:1134: 3:7:2 : AS_GENERAL descriptor not found
ALSA usbaudio.c:1191: 3:7:3 : frame size 3 doesn't match ALSA 24bit
sample format
ALSA usbaudio.c:1191: 3:8:1 : frame size 3 doesn't match ALSA 24bit
sample format
ALSA usbaudio.c:1134: 3:8:2 : AS_GENERAL descriptor not found
ALSA usbaudio.c:1191: 3:8:3 : frame size 3 doesn't match ALSA 24bit
sample format
devfs: devfs_register(): device already registered: "unknown"
----
 more /proc/asound/cards 
0 [card0          ]: CMI8738 - C-Media PCI CMI8738
                     C-Media PCI CMI8738 (model 37) at 0xa400, irq 5
1 [card1          ]: ICH - Intel 82801BA-ICH2
                     Intel 82801BA-ICH2 at 0xdc00, irq 3
2 [card2          ]: USB-Audio - USB Audio Driver
                     M Audio USB AudioSport Quattro (tm)
3 [card3          ]: USB-Audio - USB Audio Driver
                     M Audio USB AudioSport Quattro (tm)
4 [card4          ]: USB-Audio - USB Audio Driver
                     M Audio USB AudioSport Quattro (tm)
----
# lsusb -p /proc/asound/card2/ -vv
# lsusb -p /proc/asound/card3/ -vv
# lsusb -p /proc/asound/card4/ -vv
# lsusb -p /proc/asound/card4/ -vv -t
cannot open /proc/asound/card4//devices, No such file or directory (2)
----

I cannot get more out of lsusb than that. I assume it is somethign to do
with the fact the /proc/bus/usb has no entries. I will look into fixing
that unless the device is not supposed to register there.


-- 
Patrick Shirkey - Boost Hardware Ltd.
For the discerning hardware connoisseur
Http://www.boosthardware.com
Http://www.boosthardware.com/LAU/guide/
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