ilyakooo0/nixpkgs
1
0
Fork 0
mirror of https://github.com/ilyakooo0/nixpkgs.git synced 2025-01-01 08:25:55 +03:00
Code Issues Projects Releases Wiki Activity

scsi-link-pm: Don't fail if there are no matching SCSI hosts

Browse Source
This commit is contained in:
Eelco Dolstra 2012-10-04 23:25:11 -04:00
parent 8f4d8cf620
commit 5d9b3ed12b
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
modules/tasks/scsi-link-power-management.nix
View File

@ -6,7 +6,7 @@ with pkgs.lib;
###### interface ###### interface
options = { options = {
powerManagement.scsiLinkPolicy = mkOption { powerManagement.scsiLinkPolicy = mkOption {
default = ""; default = "";
example = "min_power"; example = "min_power";
@ -16,7 +16,7 @@ with pkgs.lib;
the kernel configures "max_performance". the kernel configures "max_performance".
''; '';
}; };
}; };
@ -25,19 +25,20 @@ with pkgs.lib;
config = mkIf (config.powerManagement.scsiLinkPolicy != "") { config = mkIf (config.powerManagement.scsiLinkPolicy != "") {
jobs."scsi-link-pm" = jobs."scsi-link-pm" =
{ description = "Set SCSI link power management policy"; { description = "SCSI Link Power Management Policy";
startOn = "started udev"; startOn = "stopped udevtrigger";
task = true; task = true;
script = '' script = ''
shopt -s nullglob
for x in /sys/class/scsi_host/host*/link_power_management_policy; do for x in /sys/class/scsi_host/host*/link_power_management_policy; do
echo ${config.powerManagement.scsiLinkPolicy} > $x echo ${config.powerManagement.scsiLinkPolicy} > $x
done done
''; '';
}; };
}; };
} }