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   udev_monitor_get_fd    ( 3 )

запрос и изменение монитора устройства (query and modify device monitor)

Имя (Name)

udev_monitor_receive_device, udev_monitor_enable_receiving,
       udev_monitor_set_receive_buffer_size, udev_monitor_get_fd,
       udev_monitor_get_udev - Query and modify device monitor

Синопсис (Synopsis)

#include <libudev.h>

struct udev_device *udev_monitor_receive_device(struct udev_monitor *udev_monitor);

int udev_monitor_enable_receiving(struct udev_monitor *udev_monitor);

int udev_monitor_set_receive_buffer_size(struct udev_monitor *udev_monitor, int size);

int udev_monitor_get_fd(struct udev_monitor *udev_monitor);

struct udev *udev_monitor_get_udev(struct udev_monitor *udev_monitor);


Возвращаемое значение (Return value)

On success, udev_monitor_receive_device() returns a pointer to a
       newly referenced device that was received via the monitor. The
       caller is responsible to drop this reference when done. On
       failure, NULL is returned.

On success, udev_monitor_enable_receiving() and udev_monitor_set_receive_buffer_size() return an integer greater than, or equal to, 0. On failure, a negative error code is returned.

On success, udev_monitor_get_fd() returns the file descriptor used by this monitor. On failure, a negative error code is returned.

udev_monitor_get_udev() always returns a pointer to the udev context that this monitor is associated with.


Смотри также (See also)

udev_new(3), udev_device_new_from_syspath(3),
       udev_enumerate_new(3), udev_monitor_new_from_netlink(3),
       udev_monitor_filter_update(3), udev_list_entry(3), systemd(1),