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Simplify PWM and i2c loading using nixos-hardware

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coolneng
2022-07-12 21:02:11 +02:00
parent b418c9c892
commit 23395b8e6d
3 changed files with 22 additions and 38 deletions
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15
modules/periodic.nix
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@@ -30,23 +30,14 @@ in {
};
# Enable SATA HAT
systemd.services.sata-hat = let
overlay-directory =
"/boot/nixos/4mamyanz1hlc4wz3c427qjh6rabngwvj-linux-5.10.17-1.20210303-dtbs/overlays/";
in {
systemd.services.sata-hat = {
description = "Enable software support for SATA Hat";
wantedBy = [ "zfs-import.target" ];
script = ''
${pkgs.bash}/bin/bash -c "/etc/nixos/scripts/SATA-hat.sh on"
'';
preStart = ''
${pkgs.libraspberrypi}/bin/dtoverlay -d ${overlay-directory} pwm-2chan pin=12 func=4 pin2=13 func2=4
${pkgs.libraspberrypi}/bin/dtoverlay -d ${overlay-directory} w1-gpio
${pkgs.bash}/bin/bash -c "/home/coolneng/system/scripts/SATA-hat.sh on"
'';
preStop = ''
${pkgs.libraspberrypi}/bin/dtoverlay -r -d ${overlay-directory} pwm-2chan
${pkgs.libraspberrypi}/bin/dtoverlay -r -d ${overlay-directory} w1-gpio
${pkgs.bash}/bin/bash -c "/etc/nixos/scripts/SATA-hat.sh off"
${pkgs.bash}/bin/bash -c "/home/coolneng/system/scripts/SATA-hat.sh off"
'';
serviceConfig = {
Type = "oneshot";