Hi,
Recently installed alsa-driver rc8b and alsa-lib rc8c on a gentoo box,
with a egosys U2A usb sound device run under the snd-usb-audio driver.
I'm trying to make the dmix plugin work with it. My .asoundrc looks
like:
---------------------------------
pcm.!default {
type plug
slave.pcm "dmix:RATE=44100"
}
---------------------------------
I'm just trying to play a simple wave file with aplay. The first
instance works ok, then the second instance prints the following:
---------------------------------
ALSA lib pcm_dmix.c:1434:(snd_pcm_dmix_initialize_poll_fd) unable to open timer
'hw:CLASS=3,SCLASS=0,CARD=0,DEV=0,SUBDEV=0'
ALSA lib pcm_dmix.c:1583:(snd_pcm_dmix_open) unable to initialize poll_fd
aplay: main:462: audio open error: Device or resource busy
---------------------------------
I'm not quite sure what this means, but I saw the word "timer" and
figured maybe I had to modprobe the snd-timer module, but that does not
seem to make a difference.
I'm not really sure what's going on so I figured I'd just ask, is the
dmix plugin known to work with the usb drivers? is there some
configuration step that I'm missing?
I know the U2A device has a non-conventional mixer.. there is no real
way as far as i know to access it through linux. Windows comes with a
special utility that allows you to control gain and input/output
selection..
Not sure if it will help to diagnose, but
[EMAIL PROTECTED] /dev/snd > ls -l -{Sun Mar 09
[11:34pm]}-
合計 0
crw-rw---- 1 root audio 116, 0 1969-12-31 16:00 controlC0
crw-rw---- 1 root audio 116, 24 1969-12-31 16:00 pcmC0D0c
crw-rw---- 1 root audio 116, 16 1969-12-31 16:00 pcmC0D0p
crw-rw-rw- 1 root audio 116, 33 1969-12-31 16:00 timer
[EMAIL PROTECTED] /dev/snd > /sbin/lsmod -{Sun Mar 09
[11:34pm]}-
Module Size Used by Tainted: P
snd-usb-audio 42816 0
snd-pcm 64960 0 [snd-usb-audio]
snd-page-alloc 5292 0 [snd-pcm]
snd-timer 15688 0 [snd-pcm]
snd-rawmidi 14688 0 [snd-usb-audio]
snd-seq-device 4416 0 [snd-rawmidi]
snd 32356 0 [snd-usb-audio snd-pcm snd-timer snd-rawmidi
snd-seq-device]
soundcore 3972 0 [snd]
rtc 7548 0 (autoclean)
NVdriver 1067264 10
printer 7552 0
keybdev 2016 0 (unused)
mousedev 4500 0 (unused)
hid 15016 0 (unused)
input 3616 0 [keybdev mousedev hid]
uhci 30960 0 (unused)
usbcore 72384 1 [snd-usb-audio printer hid uhci]
[EMAIL PROTECTED] /dev/snd > aplay -l -{Sun Mar 09
[11:34pm]}-
card 0: U2A [Waveterminal U2A], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
Thanks in advance,
Ken
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