mirror of
https://github.com/commaai/agnos-builder.git
synced 2026-07-09 00:32:04 +08:00
Adeeb Shihadeh
8ebf85df68
* anomalous touch logger * service * add evdev * rename * Update userspace/files/phantom_touch_logger.service
36 lines
1.2 KiB
Python
Executable File
36 lines
1.2 KiB
Python
Executable File
#!/usr/bin/env python3
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import sys
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from collections import deque
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from evdev import InputDevice, ecodes
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def log(msg):
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# TODO: keep buffer of touch events + coords and dump after log
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print(msg, file=sys.stderr)
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if __name__ == "__main__":
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touch_starts = deque([0.]*20, maxlen=20)
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dev = InputDevice('/dev/input/by-path/platform-894000.i2c-event')
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for event in dev.read_loop():
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#print(event.type, event.code, event.value)
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# TODO: consider multitouch events
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if event.type == ecodes.EV_KEY and event.code == ecodes.BTN_TOUCH:
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if event.value == 1:
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touch_starts.append(event.timestamp())
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avg_touch_dt = (max(touch_starts) - min(touch_starts)) / len(touch_starts)
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avg_touch_freq = 1 / (avg_touch_dt + 0.0001)
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if avg_touch_freq > 15:
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log(f"Quick touch frequency {avg_touch_freq:.2f}s / {event}")
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if len(touch_starts) > 2:
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dt = (touch_starts[-1] - touch_starts[-2])
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if dt < 0.02:
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log(f"Quick consecutive touches {dt:.2f}s / {event}")
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elif event.value == 0:
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if len(touch_starts):
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dt = event.timestamp() - touch_starts[-1]
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if dt > 10.:
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log(f"Touch point persisted for {dt:.2f}s / {event}")
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