blob: 60a5d0fcfa68058cd367f6fbd06f356b0632bcca (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* PPS generator API header
*
* Copyright (C) 2024 Rodolfo Giometti <giometti@enneenne.com>
*/
#ifndef _PPS_GEN_H_
#define _PPS_GEN_H_
#include <linux/types.h>
#include <linux/ioctl.h>
/**
* struct pps_gen_event - the PPS generator events
* @event: the event type
* @sequence: the event sequence number
*
* Userspace can get the last PPS generator event by using the
* ioctl(pps_gen, PPS_GEN_FETCHEVENT, ...) syscall.
* The sequence field can be used to save the last event ID, while in the
* event field is stored the last event type. Currently known event is:
*
* PPS_GEN_EVENT_MISSEDPULSE : last pulse was not generated
*/
struct pps_gen_event {
unsigned int event;
unsigned int sequence;
};
#define PPS_GEN_EVENT_MISSEDPULSE 1
#define PPS_GEN_SETENABLE _IOW('p', 0xb1, unsigned int *)
#define PPS_GEN_USESYSTEMCLOCK _IOR('p', 0xb2, unsigned int *)
#define PPS_GEN_FETCHEVENT _IOR('p', 0xb3, struct pps_gen_event *)
#endif /* _PPS_GEN_H_ */
|
