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.
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
page was obtained from the project's upstream Git repository
⟨https://github.com/systemd/systemd.git⟩ on 2017-03-13. If you dis‐
cover 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
systemd 233 UDEV_MONITOR_RECEIVE_DEVICE(3)