> 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 I have snd-usb-audio configured in modules.conf snd-usb-audio will
already be loaded at this point (I think).
> 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.
Very nice! The only downside I see is that you can no longer disable the
script. If you disable it for all run levels it will run anyway if you
plug in a usb audio device (which probably makes sense for the usb
device itself), and will try to start all non-usb audio devices. Maybe
SuSE takes this into account as well, I don't know.
Does this also need a usb.usermap entry(ies) to trigger the script?
What happens with multiple usb audio/midi devices? They all share one
snd-usb-audio module. What happens when I unplug one device? The module
gets removed and all devices that are still plugged in are orphaned?
-- Fernando
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