diff options
| author |   Sean Young <sean@mess.org> | 2018-05-27 12:24:09 +0100 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2018-05-30 12:38:40 +0200 |
| commit | f4364dcfc86df7c1ca47b256eaf6b6d0cdd0d936 (patch) | |
| tree | aa0d09b48734429acec8d26b703db839fcc655de /include/linux/bpf_lirc.h | |
| parent | bpf: bpf_prog_array_copy() should return -ENOENT if exclude_prog not found (diff) | |
| download | wireguard-linux-f4364dcfc86df7c1ca47b256eaf6b6d0cdd0d936.tar.xz wireguard-linux-f4364dcfc86df7c1ca47b256eaf6b6d0cdd0d936.zip | |
media: rc: introduce BPF_PROG_LIRC_MODE2
Add support for BPF_PROG_LIRC_MODE2. This type of BPF program can call
rc_keydown() to reported decoded IR scancodes, or rc_repeat() to report
that the last key should be repeated.
The bpf program can be attached to using the bpf(BPF_PROG_ATTACH) syscall;
the target_fd must be the /dev/lircN device.
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'include/linux/bpf_lirc.h')
| -rw-r--r-- | include/linux/bpf_lirc.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/bpf_lirc.h b/include/linux/bpf_lirc.h new file mode 100644 index 000000000000..5f8a4283092d --- /dev/null +++ b/include/linux/bpf_lirc.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _BPF_LIRC_H +#define _BPF_LIRC_H + +#include <uapi/linux/bpf.h> + +#ifdef CONFIG_BPF_LIRC_MODE2 +int lirc_prog_attach(const union bpf_attr *attr); +int lirc_prog_detach(const union bpf_attr *attr); +int lirc_prog_query(const union bpf_attr *attr, union bpf_attr __user *uattr); +#else +static inline int lirc_prog_attach(const union bpf_attr *attr) +{ + return -EINVAL; +} + +static inline int lirc_prog_detach(const union bpf_attr *attr) +{ + return -EINVAL; +} + +static inline int lirc_prog_query(const union bpf_attr *attr, + union bpf_attr __user *uattr) +{ + return -EINVAL; +} +#endif + +#endif /* _BPF_LIRC_H */ |