Daniel Dybing
5a4ae98f94
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Build Raspberry Pi Binary / build-arm64 (push) Successful in 12m6s
64 lines
2.0 KiB
Python
64 lines
2.0 KiB
Python
import evdev
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import sys
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import select
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def main():
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print("--- Touch/Input Device Verifier ---")
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# List devices
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devices = [evdev.InputDevice(path) for path in evdev.list_devices()]
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if not devices:
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print("No input devices found! Check permissions (sudo?) or connections.")
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return
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target_device = None
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print(f"Found {len(devices)} devices:")
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for i, dev in enumerate(devices):
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print(f" {i}: {dev.name} ({dev.phys}) - {dev.path}")
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# Look for the known QinHeng device
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if "CTP_CONTROL" in dev.name or "Touch" in dev.name:
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target_device = dev
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print("-" * 30)
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if target_device:
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print(f"Auto-selected likely touch device: {target_device.name}")
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dev = target_device
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else:
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# Fallback to manual selection or just pick the last one?
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# For now, let's ask user or pick the first one if interactive
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try:
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sel = input(f"Select device ID (0-{len(devices)-1}): ")
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dev = devices[int(sel)]
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except:
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print("Invalid selection. Exiting.")
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return
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print(f"\nListening to: {dev.name} ({dev.path})")
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print("Touch the screen now! (Press Ctrl+C to stop)")
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print("-" * 30)
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try:
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# Read loop
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for event in dev.read_loop():
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if event.type == evdev.ecodes.EV_ABS:
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absevent = evdev.categorize(event)
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code = evdev.ecodes.bytype[absevent.event.type][absevent.event.code]
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if code == "ABS_X":
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print(f"X: {absevent.event.value}", end=" ")
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elif code == "ABS_Y":
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print(f"Y: {absevent.event.value}")
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sys.stdout.flush()
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elif event.type == evdev.ecodes.EV_KEY and event.code == 330: # BTN_TOUCH
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print(f"Touch {'DOWN' if event.value else 'UP'}")
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except KeyboardInterrupt:
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print("\nStopped.")
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except Exception as e:
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print(f"Error reading device: {e}")
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if __name__ == "__main__":
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main()
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