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Re: [Christmas] Both ALSA and OSS sound devices

by Nicolas Boullis :: Rate this Message:

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Hi Jan,

On Fri, Jan 02, 2009 at 12:11:37PM +0100, Jan Willies wrote:
>
> OSS plays fine

That's already good news! :-)

> but I can't get ALSA to work. I can't use alsaplayer or
> alsamixer:
>
> [jan@server em8300-nboullis]$ alsamixer
> alsamixer: function snd_ctl_open failed for default: No such file or
> directory

Hmmm...
Did you use the ALSA-style audio device of the em8300 driver before?

The EM8300 chip has no hardware volume control so alsamixer is not
expected to find anything...
Well, not exacly in fact: if you have /usr/share/alsa/cards/EM8300.conf
installed (or wherever you preferred distro puts its ALSA configuration
files), you'll have software-emulated volume control. But unless I'm
mistaken, it requires that the PCM device is open (or has been opened).

What if you try to play some sound with
  aplay -D default:CARD=EM8300
? (I hope the syntax is good, I'm still away from my H+ and DXR3
boards...)


> [root@server ~]# cat /sys/module/em8300/parameters/audio_driver
> alsa,alsa,alsa,alsa

This module option is now supposed to be a no-op...


> Jan  2 12:03:21 server Sigma Designs EM8300 0000:02:05.0: PCI INT A ->
> GSI 17 (level, low) -> IRQ 17
> Jan  2 12:03:21 server em8300-0: EM8300 8300 (rev 2) <6>bus: 2, devfn:
> 40, irq: 17, <6>memory: 0xf4100000.
> Jan  2 12:03:21 server em8300-0: mapped-memory at 0xd0f80000
> Jan  2 12:03:21 server em8300-0: using MTRR
> Jan  2 12:03:21 server i2c-adapter i2c-5: sendbytes: NAK bailout.

Hmmm... Also that's unreated to sound, this is an interesting
information: it seems that your EEPROM chip did not acknowledge the i2c
communication... :-/


> btw, http://dxr3.sourceforge.net/hg/em8300-nboullis is somehow b0rked.
> hg pull doesn't work.

It's been (deliberately?) broken since the change of SourceForge's web
server... :-(
I moved this repository to
  http://freehg.org/u/nboullis/em8300/


Cheers,

Nicolas

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