[linux-audio-user] Maya 44USB Audiotrak soundcard setup

Hiram Abiff domain.admin at online.ie
Sun Mar 12 15:28:54 EST 2006


Quoting Markus Herhoffer <markus at herhoffer.net>:

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>
> I have the same output with the Maya USB. It's all right with that:
>
>> usb 2-1: USB disconnect, address 4
>> usb 2-1: new full speed USB device using ohci_hcd and address 5
>> HID device not claimed by input or hiddev
>
> Can you try:
> # cat /dev/urandom > /dev/dsp
> (Turn down the volume of your speakers and abort with Ctrl+C very quickly)
>
> This should produce a white noise completly independent from alsa. If
> you hear the noise you can be shure that there's all right on the device
> layer.
>
> Markus
>
Well, tried it and I got sound coming from my laptop speakers so I 
suppose /dev/dsp is used by my laptop's integrated soundcard.
I also have a /dev/dsp1. I tried redirecting urandom to it and got this:

cat /dev/urandom > dsp1
cat: write error: Broken pipe

/dev/dsp and /dev/dsp1 area actually symbolic links to /dev/sound/dsp
and /dev/sound/dsp1, respectively.

Here are the contents of my /dev/sound directory:
crw-rw--w-   1 root audio 14, 12 2006-03-12 18:14 adsp
crw-rw--w-   1 root audio 14,  4 2006-03-12 18:14 audio
crw-rw--w-   1 root audio 14, 20 2006-03-12 21:19 audio1
crw-rw--w-   1 root audio 14,  3 2006-03-12 18:14 dsp
crw-rw--w-   1 root audio 14, 19 2006-03-12 21:19 dsp1
crw-rw--w-   1 root audio 14,  0 2006-03-12 18:14 mixer
crw-rw--w-   1 root audio 14, 16 2006-03-12 21:19 mixer1
crw-rw--w-   1 root audio 14, 32 2006-03-12 18:14 mixer2
crw-rw--w-   1 root audio 14, 48 2006-03-12 18:48 mixer3


-- 
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