blob: 0859f83fcef54a73c61bd564dea431e443c78ed8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
{ config, lib, ... }:
with lib;
{
###### interface
options = {
hardware.trackpoint = {
enable = mkOption {
default = false;
type = types.bool;
description = ''
Enable sensitivity and speed configuration for trackpoints.
'';
};
sensitivity = mkOption {
default = 128;
example = 255;
type = types.int;
description = ''
Configure the trackpoint sensitivity. By default, the kernel
configures 128.
'';
};
speed = mkOption {
default = 97;
example = 255;
type = types.int;
description = ''
Configure the trackpoint speed. By default, the kernel
configures 97.
'';
};
emulateWheel = mkOption {
default = false;
type = types.bool;
description = ''
Enable scrolling while holding the middle mouse button.
'';
};
fakeButtons = mkOption {
default = false;
type = types.bool;
description = ''
Switch to "bare" PS/2 mouse support in case Trackpoint buttons are not recognized
properly. This can happen for example on models like the L430, T450, T450s, on
which the Trackpoint buttons are actually a part of the Synaptics touchpad.
'';
};
device = mkOption {
default = "TPPS/2 IBM TrackPoint";
type = types.str;
description = ''
The device name of the trackpoint. You can check with xinput.
Some newer devices (example x1c6) use "TPPS/2 Elan TrackPoint".
'';
};
};
};
###### implementation
config =
let cfg = config.hardware.trackpoint; in
mkMerge [
(mkIf cfg.enable {
services.udev.extraRules =
''
ACTION=="add|change", SUBSYSTEM=="input", ATTR{name}=="${cfg.device}", ATTR{device/speed}="${toString cfg.speed}", ATTR{device/sensitivity}="${toString cfg.sensitivity}"
'';
systemd.services.trackpoint = {
wantedBy = [ "sysinit.target" ] ;
before = [ "sysinit.target" "shutdown.target" ];
conflicts = [ "shutdown.target" ];
unitConfig.DefaultDependencies = false;
serviceConfig.Type = "oneshot";
serviceConfig.RemainAfterExit = true;
serviceConfig.ExecStart = ''
${config.systemd.package}/bin/udevadm trigger --attr-match=name="${cfg.device}"
'';
};
})
(mkIf (cfg.emulateWheel) {
services.xserver.inputClassSections = [
''
Identifier "Trackpoint Wheel Emulation"
MatchProduct "${if cfg.fakeButtons then "PS/2 Generic Mouse" else "ETPS/2 Elantech TrackPoint|Elantech PS/2 TrackPoint|TPPS/2 IBM TrackPoint|DualPoint Stick|Synaptics Inc. Composite TouchPad / TrackPoint|ThinkPad USB Keyboard with TrackPoint|USB Trackpoint pointing device|Composite TouchPad / TrackPoint|${cfg.device}"}"
MatchDevicePath "/dev/input/event*"
Option "EmulateWheel" "true"
Option "EmulateWheelButton" "2"
Option "Emulate3Buttons" "false"
Option "XAxisMapping" "6 7"
Option "YAxisMapping" "4 5"
''
];
})
(mkIf cfg.fakeButtons {
boot.extraModprobeConfig = "options psmouse proto=bare";
})
];
}
|