linux 获取键盘状态

pip install evdev

from evdev import InputDevice, categorize, ecodes

# 查找键盘设备
devices = [InputDevice(path) for path in evdev.list_devices()]
keyboard_device = None
for device in devices:
    if 'keyboard' in device.name.lower():
        keyboard_device = device
        break

if keyboard_device is None:
    print("No keyboard found")
else:
    print(f"Using keyboard: {keyboard_device.path}")

    # 监听键盘事件
    for event in keyboard_device.read_loop():
        if event.type == ecodes.EV_KEY:
            key_event = categorize(event)
            if key_event.keystate == key_event.key_down:
                print(f"Key pressed: {key_event.keycode}")
            elif key_event.keystate == key_event.key_up:
                print(f"Key released: {key_event.keycode}")

xinput list-props "AT Translated Set 2 keyboard" | grep "Device Enabled"

sudo apt-get install python-uinput

import uinput

# 创建虚拟键盘设备
events = (uinput.KEY_A, uinput.KEY_B, uinput.KEY_C)
device = uinput.Device(events)

# 模拟按键事件
device.emit(uinput.KEY_A, 1)  # 按下A键
device.emit(uinput.KEY_A, 0)  # 释放A键

/sys/class/input/eventX/device/state