84 lines
2.2 KiB
Nix
84 lines
2.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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{
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###### interface
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options = {
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hardware.trackpoint = {
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enable = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Enable sensitivity and speed configuration for trackpoints.
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'';
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};
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sensitivity = mkOption {
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default = 128;
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example = 255;
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type = types.int;
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description = ''
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Configure the trackpoint sensitivity. By default, the kernel
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configures 128.
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'';
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};
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speed = mkOption {
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default = 97;
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example = 255;
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type = types.int;
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description = ''
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Configure the trackpoint sensitivity. By default, the kernel
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configures 97.
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'';
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};
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emulateWheel = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Enable scrolling while holding the middle mouse button.
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'';
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};
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};
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};
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###### implementation
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config = mkMerge [
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(mkIf config.hardware.trackpoint.enable {
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services.udev.extraRules =
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''
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ACTION=="add|change", SUBSYSTEM=="input", ATTR{name}=="TPPS/2 IBM TrackPoint", ATTR{device/speed}="${toString config.hardware.trackpoint.speed}", ATTR{device/sensitivity}="${toString config.hardware.trackpoint.sensitivity}"
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'';
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system.activationScripts.trackpoint =
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''
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${config.systemd.package}/bin/udevadm trigger --attr-match=name="TPPS/2 IBM TrackPoint"
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'';
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})
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(mkIf config.hardware.trackpoint.emulateWheel {
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services.xserver.config =
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''
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Section "InputClass"
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Identifier "Trackpoint Wheel Emulation"
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MatchProduct "Elantech PS/2 TrackPoint|TPPS/2 IBM TrackPoint|DualPoint Stick|Synaptics Inc. Composite TouchPad / TrackPoint|ThinkPad USB Keyboard with TrackPoint|USB Trackpoint pointing device|Composite TouchPad / TrackPoint"
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MatchDevicePath "/dev/input/event*"
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Option "EmulateWheel" "true"
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Option "EmulateWheelButton" "2"
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Option "Emulate3Buttons" "false"
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Option "XAxisMapping" "6 7"
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Option "YAxisMapping" "4 5"
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EndSection
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'';
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})
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];
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}
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