Hello. I bought a USB Audio interface. That name is OPTOplay, made by AudioTrak. The DAC is AKM AK4353 which can support 24bit digital output. The kernel seems to recognize the device, but I can't listen music. Thomas Sailer who make usb audio driver tell me, OSS doesn't support 24 bit. If I use alsa, Can I use my device? I installed alsa, already, but Nothing changed. What can I do? #cat /dev/dsp cat : /dev/dsp : No such device #cat /dev/dsp1 cat : /dev/dsp1 : No such device here is the part of dmesg ------------------------------ usb.c: registered new driver audio usbaudio: device 2 audiocontrol interface 0 has 0 input and 1 output AudioStreaming interfaces usbaudio: device 2 interface 1 altsetting 0 does not have an endpoint usbaudio: device 2 interface 1 altsetting 1 unsupported channels 2 framesize 3 usbaudio: constructing mixer for Terminal 3 type 0x0301 usbaudio: registered mixer 14,0 usb_audio_parsecontrol: usb_audio_state at cca1b600 audio.c: v1.0.0:USB Audio Class driver --------------------------------- I mounted /proc/bus/usb manually, #mount -t usbdevfs none /proc/bus/usb here is the /proc/bus/usb/devices ------------------------- [....] C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0a92 ProdID=0051 Rev= 1.00 S: Manufacturer=EGO SYStems Inc. S: Product=AUDIOTRAK OptoPlay C:* #Ifs= 2 Cfg#= 1 Atr=00 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=00 Driver=audio I: If#= 1 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=00 Driver=audio I: If#= 1 Alt= 1 #EPs= 1 Cls=01(audio) Sub=02 Prot=00 Driver=audio [...] ---------------------------- The sound sever tell me can't find the correct device, sndconfig could't work ( can't recognize that device yet).. I inserted audio module. #lsmod audio 37920 0 (autoclean) soundcore 3568 1 (autoclean) [audio] ide-scsi 7680 0 scsi_mod 51472 1 [ide-scsi] ide-cd 26496 0 cdrom 27488 0 [ide-cd] _______________________________________________ Alsa-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-user
