selftests/hid: add support for HID-BPF pre-loading before starting a test

few required changes:
- we need to count how many times a udev 'bind' event happens
- we need to tell `udev-hid-bpf` to not automatically attach the
  provided HID-BPF objects
- we need to manually attach the ones from the kernel tree, and wait
  for the second udev 'bind' event to happen

Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Peter Hutterer <[email protected]>
Signed-off-by: Benjamin Tissoires <[email protected]>

0 files changed, 0 insertions, 0 deletions