04b3e5ab05
This commit adds a fix for XPPen Artist 24 where the second button on the pen is used as an eraser. It's a "feature" from Microsoft, but it turns out that it's actually painful for artists. So we ship here a HID-BPF program that turns this second button into an actual button. Note that the HID-BPF program is not directly loaded by the kernel itself but by udev-hid-bpf[0]. But having the sources here allows us to also integrate tests into tools/testing/selftests/hid to ensure the HID-BPF program are actually tested. [0] https://gitlab.freedesktop.org/libevdev/udev-hid-bpf Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-2-a8bf16033ef8@kernel.org Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
15 lines
283 B
C
15 lines
283 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright (c) 2022 Benjamin Tissoires
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*/
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#ifndef ____HID_BPF__H
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#define ____HID_BPF__H
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struct hid_bpf_probe_args {
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unsigned int hid;
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unsigned int rdesc_size;
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unsigned char rdesc[4096];
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int retval;
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};
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#endif /* ____HID_BPF__H */
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