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Debugging an ioctl Problem on OpenBSD.

I was trying to use a V4L2 Ruby module on my OpenBSD laptop but ran into a problem where sending the V4L2 ioctls from this module would fail, while other V4L2 programs on OpenBSD worked fine...

https://jcs.org/2022/02/16/ioctl

#ruby #debug #ioctl
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