12 Mar
2006
12 Mar
'06
4:28 p.m.
Quoting Markus Herhoffer <markus(a)herhoffer.net>et>:
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I have the same output with the Maya USB. It's all right with that:
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
--
http://www.egoboobits.net/HiramAbiff
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