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added more captures

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dekunukem
2021-10-20 22:57:14 +01:00
parent 0b09f5b332
commit 9f4f63ba74
4 changed files with 16 additions and 0 deletions
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captures/gmmk_matrix_scan_to_cat_USB_dev_input_event.sal Normal file
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captures/gmmk_matrix_scan_to_cat_dev_input_event.sal
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captures/gmmk_matrix_scan_to_python_USB_dev_input_event.sal Normal file
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captures/usb delay notes.txt Normal file
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very useful video:
https://youtu.be/wdgULBpRoXk
search for PID ACK for data packet
from keypress to PID ACK on USB line: 10 to 20ms
catting /dev/input/event0 in bash: 490us
printing via python3: 1ms
script below:
fff = open("/dev/input/event0", "rb" )
while 1:
data = fff.read(24)
print(data)