udev_monitor_receive_device(3) — Linux manual page



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);

       int 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

       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.

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 
       ⟨http://www.freedesktop.org/wiki/Software/systemd⟩.  If you have a bug
       report for this manual page, see
       ⟨http://www.freedesktop.org/wiki/Software/systemd/#bugreports⟩.  This
       page was obtained from the project's upstream Git repository
       ⟨https://github.com/systemd/systemd.git⟩ on 2020-06-09.  (At that
       time, the date of the most recent commit that was found in the repos‐
       itory was 2020-06-09.)  If you discover any rendering problems in
       this HTML version of the page, or you believe there is a better or
       more up-to-date source for the page, or you have corrections or
       improvements to the information in this COLOPHON (which is not part
       of the original manual page), send a mail to man-pages@man7.org

systemd 245                                   UDEV_MONITOR_RECEIVE_DEVICE(3)

Pages that refer to this page: udev_device_new_from_device_id(3)udev_device_new_from_devnum(3)udev_device_new_from_environment(3)udev_device_new_from_subsystem_sysname(3)udev_device_new_from_syspath(3)udev_device_ref(3)udev_device_unref(3)udev_monitor_filter_add_match_subsystem_devtype(3)udev_monitor_filter_add_match_tag(3)udev_monitor_filter_remove(3)udev_monitor_filter_update(3)udev_monitor_new_from_netlink(3)udev_monitor_ref(3)udev_monitor_unref(3)30-systemd-environment-d-generator(7)systemd.directives(7)systemd.index(7)