linux-stable/include/linux/bpf_lirc.h
Sean Young f4364dcfc8 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>
2018-05-30 12:38:40 +02:00

29 lines
645 B
C

/* 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 */