Subject: Re: [linux-audio-dev] Help: native ALSA 0.9b5 apps refuse to work, OSS apps work
From: Jörn Nettingsmeier (nettings_AT_folkwang-hochschule.de)
Date: Wed Jul 11 2001 - 01:51:53 EEST
Benno Senoner wrote:
>
> Hi, I'm trying to setup ALSA on my box (last version I compiled was 0.5.x
> months ago), in order to perform some stresstests using
> a sequencer (Muse) that sends midi events to the disk sampler usin the alsa
> seq API.
>
> I sent a posting to alsa-user but I'm not on the list and did not get back
> anything yet.
> Sorry for the redundancy and stupid questions but it's not trivial to setup
> ALSA :-)
>
> Basically I compiled and installed alsa driver, lib and utils ( 0.9.0beta5)
> on a 2.4.5 kernel. (snddevices were created)
>
> The card is a SB Live! .
>
> This is my /etc/modules.conf stuff:
>
> # ALSA part
> alias char-major-116 snd
> options snd snd_major=116
> alias snd-card-0 emu10k1
> alias snd-card-0 snd-card-emu10k1
>
> # OSS/Free part (emulation)
> alias char-major-14 soundcore
> alias sound-slot-0 snd-card-0
> alias sound-service-0-0 snd-mixer-oss
> alias sound-service-0-1 snd-seq-oss
> alias sound-service-0-3 snd-pcm-oss
>
>
> modprobe snd-card-emu10k1 works ok:
>
> [root_AT_smp /root]# lsmod
> Module Size Used by
> snd-card-emu10k1 2112 0 (unused)
> snd-emu10k1 49856 0 [snd-card-emu10k1]
> snd-util-mem 1856 0 [snd-emu10k1]
> snd-rawmidi 11872 0 [snd-emu10k1]
> snd-seq-device 4016 0 [snd-card-emu10k1 snd-rawmidi]
> snd-pcm 47104 0 [snd-emu10k1]
> snd-timer 8896 0 [snd-pcm]
> snd-hwdep 3696 0 [snd-emu10k1]
> snd-ac97-codec 22624 0 [snd-emu10k1]
> snd 25232 0 [snd-card-emu10k1 snd-emu10k1 snd-util-mem
> snd-rawmidi snd-seq-device snd-pcm snd-timer snd-hwdep snd-ac97-codec]
>
>
> Now my problem:
>
> Applications using OSS work ok. (xmms , mpg123 etc), but native ALSA apps
> refuse to work.
>
> for example running aplay I get:
>
> [benno_AT_smp benno]$ aplay /tmp/test.wav
> ALSA lib pcm.c:1048:(snd_pcm_open_noupdate) Unknown PCM default
> aplay: main:455: audio open error: No such file or directory
>
> similarly:
>
> [benno_AT_smp benno]$ alsamixer
> ALSA lib control.c:525:(snd_ctl_open_noupdate) Invalid CTL default
>
> alsamixer: function snd_ctl_open failed for default: No such file or
> directory
>
> Is this because I have no /etc/asound.conf file ?
>
> What do I need to put in that file ?
> I did look at the docs on the alsa site (joern's and john fulmers ones) but I
> did not find anything describing my problem.
>
> Can someone give me a quick hint (or point me to an useful URL) how to make
> it work ?
hello benno :)
hope you had a good flight back to italy !
since these errors correspond to the ctl and pcm entries in
.asoundrc, perhaps you should try with one. maybe the default
behaviour when the file does not exist is broken ?
here's mine:
# cat ~/.asoundrc
pcmtype.hw {
open _snd_pcm_hw_open
}
pcmtype.client {
open _snd_pcm_client_open
}
pcmtype.multi {
open _snd_pcm_multi_open
}
pcmtype.linear {
open _snd_pcm_linear_open
}
pcmtype.mulaw {
open _snd_pcm_mulaw_open
}
pcmtype.alaw {
open _snd_pcm_alaw_open
}
pcmtype.adpcm {
open _snd_pcm_adpcm_open
}
pcmtype.route {
open _snd_pcm_route_open
}
pcmtype.rate {
open _snd_pcm_rate_open
}
pcmtype.plug {
open _snd_pcm_plug_open
}
pcmtype.file {
open _snd_pcm_file_open
}
ctltype.hw {
open _snd_ctl_hw_open
}
pcm.SBLIVE {
type hw
card SBLIVE
device 0
}
ctl.SBLIVE {
type hw
card 0
}
good luck.
-- Jörn Nettingsmeier home://Kurfürstenstr.49.45138.Essen.Germany phone://+49.201.491621 http://icem-www.folkwang-hochschule.de/~nettings/ http://www.linuxdj.com/audio/lad/
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