Sound card: checking drivers
If you aren't sure which individual driver your sound card requires, you may find this shell script useful - it will iterate through each driver present in your system, check each to see if it works, and let you know what it found out when it's done.
#!/bin/sh
# Copyright (c) 2004, Romain TARTIERE <romain-tartiere@astase.com>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice unmodified, this list of conditions, and the following
# disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Root ?
expr `id -u` = 0 > /dev/null || {
echo "Error: This utility should only be run as root."
exit 1
}
# Any driver loaded ?
kldstat | grep 'snd_*' > /dev/null 2>&1 && {
echo "Error: No sound driver should be loaded."
exit 1
}
cd /boot/kernel
Result=''; # Drivers that do something
Cnt=`ls snd_* | wc -l` # Drivers count
echo -n '[Trying sound drivers -' $Cnt 'drivers found '
for i in snd_*
do
echo -n '.'
kldload $i
[ -e /dev/audio0.0 ] && Result="$Result $i"
kldunload $i
done
echo ' done]'
# Print result
echo "===> Usable sound driver(s) : $Result"
# That's all folks !
