Hi Patrick, At Thu, 30 May 2002 14:15:55 +0900, Patrick Shirkey wrote: > > 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
looks like some interfaces don't have AS_GENERAL descriptor, which specifies the pcm formats to be supported. anyway detailed description list from lsusb is necessary for analyse. > devfs: devfs_register(): device already registered: "unknown" > ALSA usbaudio.c:1191: 3:4:1 : frame size 3 doesn't match ALSA 24bit > sample format oh, that's interesting. apparently the device uses 3 bytes for 24bit sample format. alsa supports only 4bytes-packed format, so far. that's not expected. > devfs: devfs_register(): device already registered: "unknown" this is a bug of sound_core.c. you can fix it by replacing sound_core.c with the one in alsa-kernel tree. > ---- > 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) hmm.. do you have three devices? i guess these three duplicated entries are bogus... > # 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) just run lsusb (as root) without options. then it will list all devices out. or, you can specify the vendor and device ids per -d option. please send me the output. Takashi _______________________________________________________________ Don't miss the 2002 Sprint PCS Application Developer's Conference August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
