| Quellcodebibliothek Statistik Leitseite products/sources/formale Sprachen/C/Linux/include/linux/ (Open Source Betriebssystem Version 6.17.9©) Datei vom 24.10.2025 mit Größe 1 kB |
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Quelle pps_gen_kernel.h Sprache: C |
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/* SPDX-License-Identifier: GPL-2.0-or-later */
/* * PPS generator API kernel header * * Copyright (C) 2024 Rodolfo Giometti <giometti@enneenne.com> */ #ifndef LINUX_PPS_GEN_KERNEL_H #define LINUX_PPS_GEN_KERNEL_H #include <linux/pps_gen.h> #include <linux/cdev.h> #include <linux/device.h> /* * Global defines */ #define PPS_GEN_MAX_SOURCES 16 /* should be enough... */ struct pps_gen_device; /** * struct pps_gen_source_info - the specific PPS generator info * @use_system_clock: true, if the system clock is used to generate pulses * @get_time: query the time stored into the generator clock * @enable: enable/disable the PPS pulses generation * * This is the main generator struct where all needed information must be * placed before calling the pps_gen_register_source(). */ struct pps_gen_source_info { bool use_system_clock; int (*get_time)(struct pps_gen_device *pps_gen, struct timespec64 *time); int (*enable)(struct pps_gen_device *pps_gen, bool enable); /* private: internal use only */ struct module *owner; struct device *parent; /* for device_create */ }; /* The main struct */ struct pps_gen_device { const struct pps_gen_source_info *info; /* PSS generator info */ bool enabled; /* PSS generator status */ unsigned int event; unsigned int sequence; unsigned int last_ev; /* last PPS event id */ wait_queue_head_t queue; /* PPS event queue */ unsigned int id; /* PPS generator unique ID */ struct cdev cdev; struct device *dev; struct fasync_struct *async_queue; /* fasync method */ spinlock_t lock; }; /* * Global variables */ extern const struct attribute_group *pps_gen_groups[]; /* * Exported functions */ extern struct pps_gen_device *pps_gen_register_source( const struct pps_gen_source_info *info); extern void pps_gen_unregister_source(struct pps_gen_device *pps_gen); extern void pps_gen_event(struct pps_gen_device *pps_gen, unsigned int event, void *data); #endif /* LINUX_PPS_GEN_KERNEL_H */ ¤ Dauer der Verarbeitung: 0.16 Sekunden (vorverarbeitet) ¤*© Formatika GbR, Deutschland |
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2026-03-28