RE: [Alsa-user] [lack of] dynamic detection/loading of modules

["Ivica Bukvic" <ico@fuse.net>]

I presume I need to blacklist the snd-usb-audio/midi in the
/etc/hotplug/blacklist for this to work?

Also, do I need to make any other changes or as long as I put this
script into the /etc/hotplug/ dir I am set?

Thanks for the great script!

(is this going to become a standard part of the alsa driver? I sure hope
so :-)

Ico



> Note that the problem is already solveable with a nice way. The SuSE
uses
> this hotplug script:
> 
> -------------------------
> #!/bin/bash
> #
> # /etc/hotplug/usb/alsasound
> #
> # Sets up newly plugged in USB audio/MIDI devices.
> #
> 
> if [ "$INTERFACE" != "" ]; then
>     IFS=/
>     set $INTERFACE ''
>     usb_bInterfaceClass=$1
>     usb_bInterfaceSubClass=$2
>     usb_bInterfaceProtocol=$3
>     IFS="$DEFAULT_IFS"
> fi
> 
> function add_alsa () {
>     # check alsa is already running
>     if [ ! -d /proc/asound ]; then
> 	# start alsasound script, so that static devices are properly
loaded
> 	echo "Starting ALSA..."
> 	/etc/init.d/alsasound start >/dev/null 2>&1
>     fi
>     /sbin/modprobe snd-usb-audio
>     if [ "$usb_bInterfaceSubClass" != "0x01" ]; then
>       /sbin/modprobe snd-usb-midi
>     fi
> }
> 
> function remove_alsa () {
>     /sbin/modprobe -r snd-usb-midi
>     /sbin/modprobe -r snd-usb-audio
> }
> 
> case "$ACTION" in
> add)
>   add_alsa
>   ;;
> remove)
>   remove_alsa
>   ;;
> esac
> -----------------------
> 
> So, if no static ALSA drivers are loaded, load them before usb module
is
> inserted. Nice way to solve all your problems.
> 
> 						Jaroslav
> 
> -----
> Jaroslav Kysela <perex@suse.cz>
> Linux Kernel Sound Maintainer
> ALSA Project, SuSE Labs




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