UDEV_MONITOR_RECEIVE_DEVICE(3)                     udev_monitor_receive_device

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

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);

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.

HISTORY
       udev_monitor_receive_device(), udev_monitor_enable_receiving(),
       udev_monitor_set_receive_buffer_size(), udev_monitor_get_fd(), and
       udev_monitor_get_udev() were added in version 221.

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),

systemd 255                                     UDEV_MONITOR_RECEIVE_DEVICE(3)