120 lines
6.8 KiB
C
120 lines
6.8 KiB
C
/*
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* libudev - interface to udev device information
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*
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* Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _LIBUDEV_H_
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#define _LIBUDEV_H_
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#include <stdarg.h>
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#include <sys/stat.h>
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/* this will stay as long as the DeviceKit integration of udev is work in progress */
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#if !defined _LIBUDEV_COMPILATION && !defined LIBUDEV_I_KNOW_THE_API_IS_SUBJECT_TO_CHANGE
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#error "#define LIBUDEV_I_KNOW_THE_API_IS_SUBJECT_TO_CHANGE is needed to use this experimental library version"
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#endif
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/* library context */
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struct udev;
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extern struct udev *udev_new(void);
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extern struct udev *udev_ref(struct udev *udev);
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extern void udev_unref(struct udev *udev);
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extern void udev_set_log_fn(struct udev *udev,
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void (*log_fn)(struct udev *udev,
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int priority, const char *file, int line, const char *fn,
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const char *format, va_list args));
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extern int udev_get_log_priority(struct udev *udev);
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extern void udev_set_log_priority(struct udev *udev, int priority);
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extern const char *udev_get_sys_path(struct udev *udev);
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extern const char *udev_get_dev_path(struct udev *udev);
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extern void *udev_get_userdata(struct udev *udev);
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extern void udev_set_userdata(struct udev *udev, void *userdata);
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/* list iteration */
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struct udev_list_entry;
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extern struct udev_list_entry *udev_list_entry_get_next(struct udev_list_entry *list_entry);
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extern struct udev_list_entry *udev_list_entry_get_by_name(struct udev_list_entry *list_entry, const char *name);
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extern const char *udev_list_entry_get_name(struct udev_list_entry *list_entry);
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extern const char *udev_list_entry_get_value(struct udev_list_entry *list_entry);
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#define udev_list_entry_foreach(entry, first) \
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for (entry = first; \
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entry != NULL; \
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entry = udev_list_entry_get_next(entry))
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/* sys devices */
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struct udev_device;
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extern struct udev_device *udev_device_new_from_syspath(struct udev *udev, const char *syspath);
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extern struct udev_device *udev_device_new_from_devnum(struct udev *udev, char type, dev_t devnum);
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extern struct udev_device *udev_device_new_from_subsystem_sysname(struct udev *udev, const char *subsystem, const char *sysname);
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extern struct udev_device *udev_device_get_parent(struct udev_device *udev_device);
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extern struct udev_device *udev_device_get_parent_with_subsystem(struct udev_device *udev_device, const char *subsystem);
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extern struct udev_device *udev_device_ref(struct udev_device *udev_device);
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extern void udev_device_unref(struct udev_device *udev_device);
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extern struct udev *udev_device_get_udev(struct udev_device *udev_device);
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extern const char *udev_device_get_devpath(struct udev_device *udev_device);
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extern const char *udev_device_get_subsystem(struct udev_device *udev_device);
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extern const char *udev_device_get_syspath(struct udev_device *udev_device);
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extern const char *udev_device_get_sysname(struct udev_device *udev_device);
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extern const char *udev_device_get_devnode(struct udev_device *udev_device);
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extern struct udev_list_entry *udev_device_get_devlinks_list_entry(struct udev_device *udev_device);
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extern struct udev_list_entry *udev_device_get_properties_list_entry(struct udev_device *udev_device);
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extern const char *udev_device_get_driver(struct udev_device *udev_device);
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extern dev_t udev_device_get_devnum(struct udev_device *udev_device);
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extern const char *udev_device_get_action(struct udev_device *udev_device);
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extern unsigned long long int udev_device_get_seqnum(struct udev_device *udev_device);
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extern const char *udev_device_get_attr_value(struct udev_device *udev_device, const char *attr);
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/* udev and kernel device events */
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struct udev_monitor;
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extern struct udev_monitor *udev_monitor_new_from_socket(struct udev *udev, const char *socket_path);
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extern struct udev_monitor *udev_monitor_new_from_netlink(struct udev *udev);
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extern int udev_monitor_enable_receiving(struct udev_monitor *udev_monitor);
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extern struct udev_monitor *udev_monitor_ref(struct udev_monitor *udev_monitor);
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extern void udev_monitor_unref(struct udev_monitor *udev_monitor);
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extern struct udev *udev_monitor_get_udev(struct udev_monitor *udev_monitor);
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extern int udev_monitor_get_fd(struct udev_monitor *udev_monitor);
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extern struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monitor);
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/* sys enumeration */
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struct udev_enumerate;
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extern struct udev_enumerate *udev_enumerate_new(struct udev *udev);
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extern struct udev_enumerate *udev_enumerate_ref(struct udev_enumerate *udev_enumerate);
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extern void udev_enumerate_unref(struct udev_enumerate *udev_enumerate);
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extern struct udev *udev_enumerate_get_udev(struct udev_enumerate *udev_enumerate);
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extern int udev_enumerate_add_match_subsystem(struct udev_enumerate *udev_enumerate, const char *subsystem);
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extern int udev_enumerate_add_nomatch_subsystem(struct udev_enumerate *udev_enumerate, const char *subsystem);
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extern int udev_enumerate_add_match_attr(struct udev_enumerate *udev_enumerate, const char *attr, const char *value);
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extern int udev_enumerate_add_nomatch_attr(struct udev_enumerate *udev_enumerate, const char *attr, const char *value);
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extern int udev_enumerate_add_syspath(struct udev_enumerate *udev_enumerate, const char *syspath);
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extern int udev_enumerate_scan_devices(struct udev_enumerate *udev_enumerate);
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extern int udev_enumerate_scan_subsystems(struct udev_enumerate *udev_enumerate);
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extern struct udev_list_entry *udev_enumerate_get_list_entry(struct udev_enumerate *udev_enumerate);
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/* event queue */
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struct udev_queue;
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extern struct udev_queue *udev_queue_new(struct udev *udev);
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extern struct udev_queue *udev_queue_ref(struct udev_queue *udev_queue);
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extern void udev_queue_unref(struct udev_queue *udev_queue);
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extern struct udev *udev_queue_get_udev(struct udev_queue *udev_queue);
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extern unsigned long long int udev_queue_get_kernel_seqnum(struct udev_queue *udev_queue);
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extern unsigned long long int udev_queue_get_udev_seqnum(struct udev_queue *udev_queue);
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extern int udev_queue_get_queue_is_empty(struct udev_queue *udev_queue);
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extern int udev_queue_get_seqnum_is_finished(struct udev_queue *udev_queue, unsigned long long int seqnum);
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extern struct udev_list_entry *udev_queue_get_queued_list_entry(struct udev_queue *udev_queue);
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extern struct udev_list_entry *udev_queue_get_failed_list_entry(struct udev_queue *udev_queue);
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#endif
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