skypopen: added a proof of concept standalone OSS audio driver (for Skype-oss clients)
This commit is contained in:
Giovanni Maruzzelli
parent
577d7b5538
commit
7b59313902
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#!/bin/bash
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# Sample init script for the a driver module <rubini@linux.it>
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DEVICE="scull"
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SECTION="misc"
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# The list of filenames and minor numbers: $PREFIX is prefixed to all names
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PREFIX="scull"
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FILES=" 0 0 1 1 2 2 3 3 priv 16
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pipe0 32 pipe1 33 pipe2 34 pipe3 35
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single 48 uid 64 wuid 80"
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INSMOD=/sbin/insmod; # use /sbin/modprobe if you prefer
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function device_specific_post_load () {
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true; # fill at will
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}
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function device_specific_pre_unload () {
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true; # fill at will
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}
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# Everything below this line should work unchanged for any char device.
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# Obviously, however, no options on the command line: either in
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# /etc/${DEVICE}.conf or /etc/modules.conf (if modprobe is used)
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# Optional configuration file: format is
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# owner <ownername>
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# group <groupname>
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# mode <modename>
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# options <insmod options>
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CFG=/etc/${DEVICE}.conf
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# kernel version, used to look for modules
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KERNEL=`uname -r`
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#FIXME: it looks like there is no misc section. Where should it be?
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MODDIR="/lib/modules/${KERNEL}/kernel/drivers/${SECTION}"
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if [ ! -d $MODDIR ]; then MODDIR="/lib/modules/${KERNEL}/${SECTION}"; fi
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# Root or die
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if [ "$(id -u)" != "0" ]
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then
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echo "You must be root to load or unload kernel modules"
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exit 1
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fi
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# Read configuration file
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if [ -r $CFG ]; then
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OWNER=`awk "\\$1==\"owner\" {print \\$2}" $CFG`
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GROUP=`awk "\\$1==\"group\" {print \\$2}" $CFG`
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MODE=`awk "\\$1==\"mode\" {print \\$2}" $CFG`
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# The options string may include extra blanks or only blanks
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OPTIONS=`sed -n '/^options / s/options //p' $CFG`
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fi
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# Create device files
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function create_files () {
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cd /dev
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local devlist=""
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local file
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while true; do
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if [ $# -lt 2 ]; then break; fi
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file="${DEVICE}$1"
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mknod $file c $MAJOR $2
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devlist="$devlist $file"
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shift 2
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done
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if [ -n "$OWNER" ]; then chown $OWNER $devlist; fi
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if [ -n "$GROUP" ]; then chgrp $GROUP $devlist; fi
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if [ -n "$MODE" ]; then chmod $MODE $devlist; fi
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}
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# Remove device files
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function remove_files () {
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cd /dev
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local devlist=""
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local file
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while true; do
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if [ $# -lt 2 ]; then break; fi
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file="${DEVICE}$1"
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devlist="$devlist $file"
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shift 2
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done
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rm -f $devlist
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}
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# Load and create files
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function load_device () {
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if [ -f $MODDIR/$DEVICE.o ]; then
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devpath=$MODDIR/$DEVICE.o
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else if [ -f ./$DEVICE.o ]; then
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devpath=./$DEVICE.o
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else
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devpath=$DEVICE; # let insmod/modprobe guess
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fi; fi
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if [ "$devpath" != "$DEVICE" ]; then
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echo -n " (loading file $devpath)"
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fi
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if $INSMOD $devpath $OPTIONS; then
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MAJOR=`awk "\\$2==\"$DEVICE\" {print \\$1}" /proc/devices`
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remove_files $FILES
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create_files $FILES
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device_specific_post_load
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else
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echo " FAILED!"
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fi
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}
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# Unload and remove files
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function unload_device () {
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device_specific_pre_unload
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/sbin/rmmod $DEVICE
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remove_files $FILES
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}
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case "$1" in
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start)
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echo -n "Loading $DEVICE"
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load_device
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echo "."
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;;
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stop)
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echo -n "Unloading $DEVICE"
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unload_device
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echo "."
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;;
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force-reload|restart)
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echo -n "Reloading $DEVICE"
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unload_device
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load_device
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echo "."
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;;
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*)
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echo "Usage: $0 {start|stop|restart|force-reload}"
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exit 1
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esac
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exit 0
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