alsa1021 () {
DRIVER=alsa-driver-1.0.21
FIRMWARE=alsa-firmware-1.0.20
LIB=alsa-lib-1.0.21a
PLUGINS=alsa-plugins-1.0.21
UTILS=alsa-utils-1.0.21
TOOLS=alsa-tools-1.0.21
OSS=alsa-oss-1.0.17
}
With this:
alsa1021 () {
DRIVER=alsa-driver-1.0.22
FIRMWARE=alsa-firmware-1.0.20
LIB=alsa-lib-1.0.22
PLUGINS=alsa-plugins-1.0.22
UTILS=alsa-utils-1.0.22
TOOLS=alsa-tools-1.0.22
OSS=alsa-oss-1.0.17
}
You should only upgrade if you have issues with your sound!
Update: there is now also a PPA which you can use to upgrade to ALSA 1.0.22 in Ubuntu Karmic.