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* Udev rules/script to load device firmware automatically. The udev

Browse Source 
job takes a list of firmware directories in which to search for
  firmware files.  Right now this is just the Intel 2200 firmware (if
  enabled).

svn path=/nixos/trunk/; revision=8162
This commit is contained in:
Eelco Dolstra 2007-03-03 23:20:08 +00:00
parent 1a9f5e455e
commit 2bff886ae1
5 changed files with 80 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
system/options.nix
View File

@ -3,13 +3,6 @@
[
{
name = ["networking" "hostName"];
default = "nixos";
description = "The name of the machine.";
}
{
name = ["time" "timeZone"];
default = "CET";
@ -186,6 +179,13 @@
}
{
name = ["networking" "hostName"];
default = "nixos";
description = "The name of the machine.";
}
{
name = ["networking" "useDHCP"];
default = true;
@ -234,6 +234,19 @@
}
{
name = ["networking" "enableIntel2200BGFirmware"];
default = false;
description = "
Turn on this option if you want firmware for the Intel
PRO/Wireless 2200BG to be loaded automatically. This is
required if you want to use this device. Intel requires you to
accept the license for this firmware, see
<link xlink:href='http://ipw2200.sourceforge.net/firmware.php?fid=7'/>.
";
}
{
name = ["fileSystems"];
default = [];

4
system/upstart.nix
View File

@ -23,8 +23,10 @@ import ../upstart-jobs/gather.nix {
# The udev daemon creates devices nodes and runs programs when
# hardware events occur.
(import ../upstart-jobs/udev.nix {
inherit (pkgs) writeText udev procps;
inherit (pkgs) stdenv writeText substituteAll udev procps;
inherit (pkgs.lib) cleanSource;
firmwareDirs =
(if config.get ["networking" "enableIntel2200BGFirmware"] then [pkgs.ipw2200fw] else []);
})
# Makes LVM logical volumes available.

30
upstart-jobs/udev-firmware-loader.sh Executable file
View File

@ -0,0 +1,30 @@
#! @shell@
export PATH="@path@"
exec > /var/log/udev-fw 2>&1
if test "$ACTION" = "add"; then
ls -l /sys/$DEVPATH >> /tmp/fw 2>&1
if ! test -e /sys/$DEVPATH/loading; then
echo "Firmware loading is not supported by device \`DEVPATH'."
exit 1
fi
for dir in @firmwareDirs@; do
if test -e "$dir/$FIRMWARE"; then
echo "Loading \`$FIRMWARE' for device \`$DEVPATH' from $dir."
echo 1 > /sys/$DEVPATH/loading
cat "$dir/$FIRMWARE" > /sys/$DEVPATH/data
echo 0 > /sys/$DEVPATH/loading
exit 0
fi
done
echo "Firmware \`$FIRMWARE' for device \`$DEVPATH' not found."
echo -1 > /sys/$DEVPATH/loading
exit 1
fi

6
upstart-jobs/udev-rules/50-udev.rules
View File

@ -14,7 +14,7 @@ KERNEL=="kvm", MODE="0666"
# TTYs.
KERNEL=="tty", NAME="%k", MODE="666", OPTIONS="last_rule" # GROUP="tty"
KERNEL=="tty", NAME="%k", MODE="666", OPTIONS="last_rule" # GROUP="tty"
KERNEL=="ptmx", NAME="%k", MODE="666" # GROUP="tty"
@ -37,3 +37,7 @@ KERNEL=="pcmC[D0-9cp]*", NAME="snd/%k"
KERNEL=="midiC[D0-9]*", NAME="snd/%k"
KERNEL=="timer", NAME="snd/%k"
KERNEL=="seq", NAME="snd/%k"
# Firmware loading.
SUBSYSTEM=="firmware", ACTION=="add", RUN+="@firmwareLoader@"

24
upstart-jobs/udev.nix
View File

@ -1,9 +1,29 @@
{writeText, cleanSource, udev, procps}:
{stdenv, writeText, substituteAll, cleanSource, udev, procps, firmwareDirs}:
let
# Perform substitutions in all udev rules files.
udevRules = stdenv.mkDerivation {
name = "udev-rules";
src = cleanSource ./udev-rules;
firmwareLoader = substituteAll {
src = ./udev-firmware-loader.sh;
path = "${stdenv.coreutils}/bin";
isExecutable = true;
inherit firmwareDirs;
};
buildCommand = "
buildCommand= # urgh
ensureDir $out
for i in $src/*; do
substituteAll $i $out/$(basename $i)
done
";
};
# The udev configuration file
conf = writeText "udev.conf" "
udev_rules=\"${cleanSource ./udev-rules}\"
udev_rules=\"${udevRules}\"
";
in