Cirrus Logic Sound Fusion CS4280, CS461x, CS462x, CS463x devices
This page describes the state of support for sound devices based on CS46xx chipsets on Debian systems.
snd-cs46xx is a kernel module supporting Cirrus Logic's Sound Fusion CS46xx audio controllers. It is an ALSA driver provided in Linux 2.6 mainline kernels.
In linux-2.6 2.6.23-1, the binary-only firmware in this driver was removed (see the package changelog), due to discovered firmware licensing issues. The driver was disabled at this time. Firmware was also removed from the alsa-source package to resolve bug 483918.
The snd-cs46xx module is included within 2.6.18 Debian kernel images.
$ su # aptitude update # aptitude install build-essential debconf-utils devscripts fakeroot linux-headers-$(uname -r) module-assistant
Add the Debian Backports repository to /etc/apt/sources.list, for example:
# Backported packages for Debian Etch deb http://www.backports.org/debian etch-backports main
Update the list of available packages and install the etch-backports/debian-backports-keyring package:
# aptitude update # aptitude -t etch-backports install debian-backports-keyring
As your system does not yet have the GnuPG archive key of the backports.org repository installed, you will be asked to confirm installation of a package from an untrusted repository. Enter Yes when prompted.
# aptitude -t etch-backports install debhelper quilt $ exit
Acquire a deprecated alsa-driver source package:
$ dget -x http://snapshot.debian.net/archive/2008/04/07/debian/pool/main/a/alsa-driver/alsa-driver_1.0.16-1.1.dsc
Build the binary packages:
$ cd alsa-driver-1.0.16 $ dpkg-buildpackage -b -uc -rfakeroot
Install the alsa-source package:
$ cd .. $ su # dpkg -i ./alsa-source*deb $ exit
Build an alsa-modules-* package for your system:
$ m-a -u /tmp build alsa
Install the alsa-modules-* package:
$ su # dpkg -i /tmp/alsa-modules*deb
# aptitude install alsa-base alsa-utils
Reload the ALSA modules and load the snd-cs46xx module:
# invoke-rc.d alsa reload # modprobe snd-cs46xx
If not already performed, add your user account to the audio group, then log out and log back into your system:
# adduser yourusername audio # exit $ exit
Run alsamixer, unmute channels and raise sound levels:
Test your sound device:
$ aplay /usr/share/sounds/alsa/Noise.wav
The page HowToIdentifyADevice/PCI explains how to identify a PCI device.
The following list is based on the alias fields of modinfo snd-cs46xx on Etch.
PCI: 1013:6001 Cirrus Logic CS 4610/11 [CrystalClear SoundFusion Audio Accelerator] PCI: 1013:6003 Cirrus Logic CS 4614/22/24 [CrystalClear SoundFusion Audio Accelerator] PCI: 1013:6004 Cirrus Logic CS 4614/22/24 [CrystalClear SoundFusion Audio Accelerator]