@wangjun Thank you for doing this experiment!
1. When the touchpad works by setting pin's direction=out, you could see
lots of "no data" message ("IRQ triggered but there's no data") keeping
popping up after moving your finger away from the touchpad, am I
correct?
2. When pin's direction=out, does only one new "no data" message or
multiple ones appear on the screen when you toggle the pin value?
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https://bugs.launchpad.net/bugs/1887190
Title:
MSFT Touchpad not working on Lenovo Legion-5 15ARH05
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