pyrox.dev
lol
Trackpoint scrolling on T450s et al
+31
-17
+31
-17
nixos/modules/tasks/trackpoint.nix
+31
-17
nixos/modules/tasks/trackpoint.nix
···
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'';
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};
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fakeButtons = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Switch to "bare" PS/2 mouse support in case Trackpoint buttons are not recognized
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properly. This can happen for example on models like the L430, T450, T450s, on
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which the Trackpoint buttons are actually a part of the Synaptics touchpad.
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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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config =
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let cfg = config.hardware.trackpoint; in
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mkMerge [
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(mkIf cfg.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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ACTION=="add|change", SUBSYSTEM=="input", ATTR{name}=="TPPS/2 IBM TrackPoint", ATTR{device/speed}="${toString cfg.speed}", ATTR{device/sensitivity}="${toString cfg.sensitivity}"
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'';
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system.activationScripts.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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(mkIf (cfg.emulateWheel) {
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services.xserver.inputClassSections =
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[''
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Identifier "Trackpoint Wheel Emulation"
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MatchProduct "${if cfg.fakeButtons then "PS/2 Generic Mouse" else "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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''];
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})
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(mkIf cfg.fakeButtons {
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boot.extraModprobeConfig = "options psmouse proto=bare";
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})
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];
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}