x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
UDEV_DEVICE_GET_SYSPATH(3) udev_device_get_syspath UDEV_DEVICE_GET_SYSPATH(3)
NAME
udev_device_get_syspath, udev_device_get_sysname,
udev_device_get_sysnum, udev_device_get_devpath,
udev_device_get_devnode, udev_device_get_devnum,
udev_device_get_devtype, udev_device_get_subsystem,
udev_device_get_driver, udev_device_get_udev, udev_device_get_parent,
udev_device_get_parent_with_subsystem_devtype,
udev_device_get_is_initialized, udev_device_get_action - Query device
properties
SYNOPSIS
#include <libudev.h>
const char *udev_device_get_syspath(struct udev_device *udev_device);
const char *udev_device_get_sysname(struct udev_device *udev_device);
const char *udev_device_get_sysnum(struct udev_device *udev_device);
const char *udev_device_get_devpath(struct udev_device *udev_device);
const char *udev_device_get_devnode(struct udev_device *udev_device);
dev_t udev_device_get_devnum(struct udev_device *udev_device);
const char *udev_device_get_devtype(struct udev_device *udev_device);
const char *udev_device_get_subsystem(struct udev_device *udev_device);
const char *udev_device_get_driver(struct udev_device *udev_device);
struct udev *udev_device_get_udev(struct udev_device *udev_device);
struct udev_device
*udev_device_get_parent(struct udev_device *udev_device);
struct udev_device
*udev_device_get_parent_with_subsystem_devtype(struct udev_device *udev_device,
const char *subsystem,
const char *devtype);
int udev_device_get_is_initialized(struct udev_device *udev_device);
const char *udev_device_get_action(struct udev_device *udev_device);
RETURN VALUE
On success, udev_device_get_syspath(), udev_device_get_sysname(),
udev_device_get_sysnum(), udev_device_get_devpath(),
udev_device_get_devnode(), udev_device_get_devtype(),
udev_device_get_subsystem(), udev_device_get_driver() and
udev_device_get_action() return a pointer to a constant string that
describes the requested property. The lifetime of this string is bound
to the device it was requested on. On failure, each function may return
NULL.
On success, udev_device_get_devnum() returns the device type of the
passed device. On failure, a device type with minor and major number
set to 0 is returned.
udev_device_get_udev() always returns a valid pointer to the udev
context that this device belongs to.
On success, udev_device_get_parent() and
udev_device_get_parent_with_subsystem_devtype() return a pointer to the
parent device. No additional reference to this device is acquired, but
the child device owns a reference to such a parent device. On failure,
NULL is returned.
On success, udev_device_get_is_initialized() returns either 1 or 0,
depending on whether the passed device has already been initialized by
udev or not. On failure, a negative error code is returned. Note that
devices for which no udev rules are defined are never reported
initialized.
SEE ALSO
udev_new(3), udev_device_new_from_syspath(3), udev_device_has_tag(3),
udev_enumerate_new(3), udev_monitor_new_from_netlink(3),
udev_list_entry(3), systemd(1)
systemd 254 UDEV_DEVICE_GET_SYSPATH(3)
Want to link to this manual page? Use this URL:
<https://star2.abcm.com/cgi-bin/bsdi-man?query=udev_device_get_subsystem&sektion=3&manpath=>