Linux python触摸板左右键测试

1. 打开终端，输入以下命令安装xinput工具

sudo apt-get install xinput

2. 在终端中输入以下命令查看触摸板设备ID

xinput list

3. 找到触摸板设备的ID后，在终端中输入以下命令查看设备支持的属性

xinput list-props <device id>

4. 找到触摸板设备的左右键属性ID，通常是Button Left和Button Right。例如：

Device 'SynPS/2 Synaptics TouchPad':
Device Enabled (149):	1
Coordinate Transformation Matrix (151):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (279):	1
Device Accel Constant Deceleration (280):	2.500000
Device Accel Adaptive Deceleration (281):	1.000000
Device Accel Velocity Scaling (282):	12.500000
Synaptics Edges (301):	1753, 5193, 1604, 4334
Synaptics Finger (302):	25, 30, 0
Synaptics Tap Time (303):	180
Synaptics Tap Move (304):	221
Synaptics Tap Durations (305):	180, 100, 100
Synaptics ClickPad (306):	1
Synaptics Middle Button Timeout (307):	0
Synaptics Two-Finger Pressure (308):	282
Synaptics Two-Finger Width (309):	7
Synaptics Scrolling Distance (310):	115, 115
Synaptics Edge Scrolling (311):	0, 0, 0
Synaptics Two-Finger Scrolling (312):	1, 1
Synaptics Move Speed (313):	1.000000, 1.750000, 0.059219, 0.000000
Synaptics Off (314):	0
Synaptics Locked Drags (315):	0
Synaptics Locked Drags Timeout (316):	5000
Synaptics Tap Action (317):	2, 3, 0, 0, 1, 3, 0
Synaptics Click Action (318):	1, 3, 0
Synaptics Circular Scrolling (319):	0
Synaptics Circular Scrolling Distance (320):	0.100000
Synaptics Circular Scrolling Trigger (321):	0
Synaptics Circular Pad (322):	0
Synaptics Palm Detection (323):	0
Synaptics Palm Dimensions (324):	10, 200
Synaptics Coasting Speed (325):	20.000000, 50.000000
Synaptics Pressure Motion (326):	30, 160
Synaptics Pressure Motion Factor (327):	1.000000, 1.000000
Synaptics Resolution Detect (328):	1
Synaptics Grab Event Device (329):	0
Synaptics Gestures (330):	1
Synaptics Capabilities (331):	1, 0, 0, 1, 1, 1, 1
Synaptics Pad Resolution (332):	32, 32
Synaptics Area (333):	0, 0, 0, 0
Synaptics Soft Button Areas (334):	3446, 0, 3918, 0, 3030, 3445, 3918, 0
Synaptics Noise Cancellation (335):	8, 8
Device Product ID (274):	2, 7
Device Node (275):	"/dev/input/event3"

在这个例子中，Button Left的属性ID是 317，Button Right的属性ID是 318。

5. 在终端中输入以下命令测试触摸板的左右键

xinput test <device id>

终端会显示出触摸板的事件信息。按下触摸板的左键或右键，终端会显示出对应的事件信息。例如：

button press   1 
button release 1 

其中，button press表示按下按钮，button release表示松开按钮，1表示左键，3表示右键。