Subject: [linux-audio-user] RE: [linux-audio-dev] RME Hammerfall DSP Cardbus+Multiface
From: Mark Knecht (mknecht_AT_controlnet.com)
Date: Thu Dec 19 2002 - 18:04:22 EET
Paul,
Great info. I didn't know about modinfo. Is there a way to query what the
current setting of these parameters are? It seems that I'm told I have a
range to work in, like 1-8, but no indication of how they are currently set
or what they do. (Maybe only read the code?)
I'm sure that many are just on/off sorts of things, but some clearly are
not.
Mark
-----Original Message-----
From: linux-audio-dev-admin_AT_music.columbia.edu
[mailto:linux-audio-dev-admin_AT_music.columbia.edu]On Behalf Of Paul Davis
Sent: Thursday, December 19, 2002 6:21 AM
To: linux-audio-dev_AT_music.columbia.edu
Cc: Alsa-List
Subject: Re: [linux-audio-dev] RME Hammerfall DSP Cardbus+Multiface
>dsen,
> Hi. I'm messing with similar things this evening. (And not doing
>great, but not failing either.) I'm using a HDAP 9652, not the
>Multiface, but it's the same driver I believe. The difference is I have
>no 'headphone output'. Just 26 outputs.
>
> I'm in KDE. Inside of a Konquerer window, I have set the file
>associations for wav and x-wave to be
>
>aplay -device="plughw"
>
actually, i doubt that this is the issue at all. the hdsp driver has a
module option:
snd_line_outs_monitor
(possibly changed in recent versions to just "line_outs_monitor"). if
set to a non-zero value, all other outputs will be monitored on the
headphone/line out channels. you can find out about module options
using the modinfo command. for example:
% modinfo snd-hdsp
filename: /lib/modules/2.4.19/kernel/sound/pci/rme9652/snd-hdsp.o
description: "RME Hammerfall DSP"
author: "Paul Davis <pbd_AT_op.net>"
license: "GPL"
parm: snd_index int array (min = 1, max = 8), description "Index
value for RME Hammerfall DSP interface."
parm: snd_id string array (min = 1, max = 8), description "ID string
for RME Hammerfall DSP interface."
parm: snd_enable int array (min = 1, max = 8), description
"Enable/disable specific Hammerfall DSP soundcards."
parm: snd_precise_ptr int array (min = 1, max = 8), description
"Enable precise pointer (doesn't work reliably)."
parm: snd_line_outs_monitor int array (min = 1, max = 8), description
"Send all input and playback streams to line outs by default."
parm: snd_force_firmware int array (min = 1, max = 8), description
"Force a reload of the I/O box firmware"
the parameter defaults to zero, so by default, you hear nothing.
there is no way to use any existing linux audio mixer to control
*what* you hear - the hdsp has 1542 mixer controls arranged in a
matrix, and its just not possible to make sense of this with mixers
designed around a few channels with direct routing. work is proceeding
on an equivalent to RME's TotalMix to offer ways of controlling this.
--p
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