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UDEV_ENUMERATE_NEW
Section: udev_enumerate_new (3)Updated:
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NAME
udev_enumerate_new, udev_enumerate_ref, udev_enumerate_unref - Create, acquire and release a udev enumerate objectSYNOPSIS
#include <libudev.h>
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struct udev_enumerate *udev_enumerate_new(struct udev *udev);
- struct udev_enumerate *udev_enumerate_ref(struct udev_enumerate *udev_enumerate);
- struct udev_enumerate *udev_enumerate_unref(struct udev_enumerate *udev_enumerate);
- struct udev_enumerate *udev_enumerate_ref(struct udev_enumerate *udev_enumerate);
DESCRIPTION
udev_enumerate_new()
udev_enumerate_ref() takes a reference of an enumeration context.
udev_enumerate_unref() drops a reference of an enumeration context. If the refcount reaches zero, all resources of the enumeration context will be released.
RETURN VALUE
On success, udev_enumerate_new() returns a pointer to the allocated enumeration object. On failure, NULL is returned. udev_enumerate_ref() returns the argument that it was passed, unmodified. udev_enumerate_unref() always returns NULL.
HISTORY
udev_enumerate_new(), udev_enumerate_ref(), and udev_enumerate_unref() were added in version 221.
SEE ALSO
udev_new(3), udev_device_new_from_syspath(3), udev_enumerate_add_match_subsystem(3), udev_enumerate_scan_devices(3), udev_monitor_new_from_netlink(3), udev_list_entry(3), systemd(1)