Quoting Song KiSun <[EMAIL PROTECTED]>: > Hello, I bought a some USB Audio Interface. > That's name is OPTOPlay, mady by AudioTrak. > The DAC is AKM AK4353 which can support 24bit digital output. > > 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 cc165cc0 > audio.c: v1.0.0:USB Audio Class driver > > ------------------------------------------------ > > I can't use my USB Audio. > > $cat /dev/dsp > cat: /dev/dsp : No such device....
This device seems to be output-only (it is even called OPTO *Play*), and the log says that it has only output interface. Why then do you try to *read* from the device? Try `ls -l / > /dev/dsp` instead. Dmitri -- Microsoft seems to have gotten a lot of mileage out of the C2 rating for NT with no network connection. I wonder if a B3 rating for Linux with no power cord might be of value. (Seen on the kernel mailing list and sent in by Michael Driscoll <[EMAIL PROTECTED]>)
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