[PlanetCCRMA] updated: alsa drivers.... finally!

Mark Knecht markknecht@attbi.com
Tue Dec 17 19:53:01 2002

   Hi. Interesting results. I think it's basically working, although I
ran across a couple of things.

1) On my system, if I warm boot to the command line, and then do an 'ls
/dev/snd' I see only the 2X2, but not the HDSP at all. The 2X2 looks
like 'card0' at that point I think. It says midiC0D0. I guess there's
some small chance that I'm seeing just one of the two MIDI ports on the
HDSP itself, but  sort of doubt it.

2) If I then do a 'startx' and do the 'ls /dev/snd' I see the HDSP as
card0, I see both of the HDSP's MIDI ports, and the 2X2 has moved to
card1. (MidiC1D0)

I have a suspicion that KDE is still calling, or trying to call, some
sound stuff and auto loading sound. I don't see why it isn't showing up
at the command line.

[root@Godzilla root]# /sbin/chkconfig --list alsasound
alsasound       0:off   1:off   2:on    3:on    4:on    5:on    6:off
[root@Godzilla root]#

3) A couple of PlanetCCRMA configuration questions:

a) The autoclean instructions talk about card0. With this configuration
should I actually have card0 and card1 lines at the end of my
module.conf file?

b) The USB Nano-HOWTO talks about raising the card limit by 2, but in
the example we did below I only raised it by 1. Should it be 1 or 2 do
you think?

   I still have lots of testing to do, but it does seem a bit better
behaved, so far. This sort of thing takes a long time to really be sure.


On Tue, 2002-12-17 at 11:54, Fernando Pablo Lopez-Lezcano wrote:
> The first change to try is to add the snd-usb-audio module as a second
> card to your modules.conf file (as suggested by Paul):
> # --- BEGIN: Generated by ALSACONF, do not edit. --- 
> # --- ALSACONF verion 0.9.0 --- 
> alias char-major-116 snd 
> alias snd-card-0 snd-hdsp 
> alias snd-card-1 snd-usb-audio
> alias char-major-14 soundcore 
> alias sound-slot-0 snd-card-0 
> alias sound-slot-1 snd-card-1
> alias sound-service-0-0 snd-mixer-oss 
> alias sound-service-0-1 snd-seq-oss 
> alias sound-service-0-3 snd-pcm-oss 
> alias sound-service-0-8 snd-seq-oss 
> alias sound-service-0-12 snd-pcm-oss 
> options snd major=116 cards_limit=2 device_mode=0666 
> options snd-hdsp index=0 
> options snd-usb-audio index=1
> # --- END: Generated by ALSACONF, do not edit. 
> I don't think you need additional sound-service aliases as this is just
> a midi card. 
> This will make sure that when the snd-usb-audio module is loaded by
> hotplug it will be associated with the second slot in the system (ie: it
> will be the second card even though there is no first card loaded at
> that point). 
> Still remains the problem of loading the snd-hdsp module. By the time
> the alsasound script executes /proc/asound will exist and the rest of
> the modules (ie: the snd-hdsp module) will not be loaded by the script. 
> That should not be _really_ a problem (I think) as the first program you
> use that references the first card will autoload the snd-hdsp module. I
> think this will work even though it is not the best solution (as I said
> ins alsa-dev the alsasound script should be changed to be able to deal
> with partially loaded module stacks). 
> -- Fernando
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