nixos/uvcvideo.dynctrl: Init
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64
nixos/modules/hardware/video/uvcvideo/default.nix
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64
nixos/modules/hardware/video/uvcvideo/default.nix
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{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.uvcvideo;
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uvcdynctrl-udev-rules = packages: pkgs.callPackage ./uvcdynctrl-udev-rules.nix {
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drivers = packages;
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udevDebug = false;
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};
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in
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{
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options = {
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services.uvcvideo.dynctrl = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to enable <command>uvcvideo</command> dynamic controls.
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Note that enabling this brings the <command>uvcdynctrl</command> tool
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into your environement and register all dynamic controls from
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specified <command>packages</command> to the <command>uvcvideo</command> driver.
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'';
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};
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packages = mkOption {
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type = types.listOf types.path;
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example = literalExample "[ pkgs.tiscamera ]";
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description = ''
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List of packages containing <command>uvcvideo</command> dynamic controls
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rules. All files found in
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<filename><replaceable>pkg</replaceable>/share/uvcdynctrl/data</filename>
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will be included.
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Note that these will serve as input to the <command>libwebcam</command>
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package which through its own <command>udev</command> rule will register
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the dynamic controls from specified packages to the <command>uvcvideo</command>
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driver.
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'';
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apply = map getBin;
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};
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};
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};
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config = mkIf cfg.dynctrl.enable {
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services.udev.packages = [
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(uvcdynctrl-udev-rules cfg.dynctrl.packages)
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];
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environment.systemPackages = [
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pkgs.libwebcam
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];
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};
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}
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@ -0,0 +1,46 @@
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{ lib
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, stdenv
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, buildEnv
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, libwebcam
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, makeWrapper
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, runCommand
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, drivers ? []
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, udevDebug ? false
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}:
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let
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version = "0.0.0";
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dataPath = buildEnv {
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name = "uvcdynctrl-with-drivers-data-path";
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paths = drivers ++ [ libwebcam ];
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pathsToLink = [ "/share/uvcdynctrl/data" ];
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ignoreCollisions = false;
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};
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dataDir = "${dataPath}/share/uvcdynctrl/data";
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udevDebugVarValue = if udevDebug then "1" else "0";
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in
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runCommand "uvcdynctrl-udev-rules-${version}"
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{
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inherit dataPath;
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buildInputs = [
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makeWrapper
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libwebcam
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];
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dontPatchELF = true;
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dontStrip = true;
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}
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''
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mkdir -p "$out/lib/udev"
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makeWrapper "${libwebcam}/lib/udev/uvcdynctrl" "$out/lib/udev/uvcdynctrl" \
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--set NIX_UVCDYNCTRL_DATA_DIR "${dataDir}" \
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--set NIX_UVCDYNCTRL_UDEV_DEBUG "${udevDebugVarValue}"
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mkdir -p "$out/lib/udev/rules.d"
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cat "${libwebcam}/lib/udev/rules.d/80-uvcdynctrl.rules" | \
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sed -r "s#RUN\+\=\"([^\"]+)\"#RUN\+\=\"$out/lib/udev/uvcdynctrl\"#g" > \
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"$out/lib/udev/rules.d/80-uvcdynctrl.rules"
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''
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@ -50,6 +50,7 @@
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./hardware/video/bumblebee.nix
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./hardware/video/bumblebee.nix
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./hardware/video/displaylink.nix
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./hardware/video/displaylink.nix
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./hardware/video/nvidia.nix
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./hardware/video/nvidia.nix
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./hardware/video/uvcvideo/default.nix
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./hardware/video/webcam/facetimehd.nix
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./hardware/video/webcam/facetimehd.nix
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./i18n/input-method/default.nix
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./i18n/input-method/default.nix
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./i18n/input-method/fcitx.nix
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./i18n/input-method/fcitx.nix
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