udev_monitor_receive_device(3) — Linux manual page


UDEV_MO...E_DEVICE(3)  udev_monitor_receive_device UDEV_MO...E_DEVICE(3)

NAME         top

       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         top

       #include <libudev.h>

       struct udev_device
                                                       *udev_monitor_receive_device(struct udev_monitor *udev_monitor);

                                         udev_monitor_enable_receiving(struct udev_monitor *udev_monitor);

                                                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         top

       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

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

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

HISTORY         top

       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         top

       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),

COLOPHON         top

       This page is part of the systemd (systemd system and service
       manager) project.  Information about the project can be found at
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       This page was obtained from the project's upstream Git repository
       ⟨https://github.com/systemd/systemd.git⟩ on 2023-12-22.  (At that
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       (which is not part of the original manual page), send a mail to

systemd 255                                        UDEV_MO...E_DEVICE(3)

Pages that refer to this page: udev_device_new_from_syspath(3)udev_monitor_filter_update(3)udev_monitor_new_from_netlink(3)systemd.directives(7)systemd.index(7)