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Old 01-31-2023, 12:52 PM   #1
lsmeni
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Being the only one capturing touch input?
Hi all!

By following the amazing research done by this community , I've managed to capture touch input by reading on /dev/input/event1. However, the touch events still got forwarded to the current displayed applet. Because I'm planing to use these events for a fullscreen application (drawn by fbink), that behavior would be undesirable...

Is there a simple workaround to be the only input reader?
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Old 01-31-2023, 04:14 PM   #2
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Originally Posted by lsmeni View Post
Hi all!

By following the amazing research done by this community , I've managed to capture touch input by reading on /dev/input/event1. However, the touch events still got forwarded to the current displayed applet. Because I'm planing to use these events for a fullscreen application (drawn by fbink), that behavior would be undesirable...

Is there a simple workaround to be the only input reader?
You want the EVIOCGRAB ioctl, here's an example of using it to capture input devices in C.
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Old 02-01-2023, 02:41 PM   #3
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If you're using the excellent `libevdev` library to handle low-level input handling, it also happens to have a dedicated wrapper for it.
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Old 02-03-2023, 08:19 PM   #4
lsmeni
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Suuuper! Took me some time to figure out how to cross-compile for kindle (ended up using this toolchain) but it worked just as expected.



Quote:
Originally Posted by NiLuJe View Post
If you're using the excellent `libevdev` library to handle low-level input handling, it also happens to have a dedicated wrapper for it.
I was not familiar with libevdev, will definitely check that out. Thanks!
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