1UDEV_DEVICE_GET_SYSPATH(3)  udev_device_get_syspath UDEV_DEVICE_GET_SYSPATH(3)
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NAME

6       udev_device_get_syspath, udev_device_get_sysname,
7       udev_device_get_sysnum, udev_device_get_devpath,
8       udev_device_get_devnode, udev_device_get_devnum,
9       udev_device_get_devtype, udev_device_get_subsystem,
10       udev_device_get_driver, udev_device_get_udev, udev_device_get_parent,
11       udev_device_get_parent_with_subsystem_devtype,
12       udev_device_get_is_initialized, udev_device_get_action - Query device
13       properties
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SYNOPSIS

16       #include <libudev.h>
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18       const char *udev_device_get_syspath(struct udev_device *udev_device);
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20       const char *udev_device_get_sysname(struct udev_device *udev_device);
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22       const char *udev_device_get_sysnum(struct udev_device *udev_device);
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24       const char *udev_device_get_devpath(struct udev_device *udev_device);
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26       const char *udev_device_get_devnode(struct udev_device *udev_device);
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28       dev_t udev_device_get_devnum(struct udev_device *udev_device);
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30       const char *udev_device_get_devtype(struct udev_device *udev_device);
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32       const char *udev_device_get_subsystem(struct udev_device *udev_device);
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34       const char *udev_device_get_driver(struct udev_device *udev_device);
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36       struct udev *udev_device_get_udev(struct udev_device *udev_device);
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38       struct udev_device
39                                                  *udev_device_get_parent(struct udev_device *udev_device);
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41       struct udev_device
42                                                                         *udev_device_get_parent_with_subsystem_devtype(struct udev_device *udev_device,
43                                                                         const char *subsystem,
44                                                                         const char *devtype);
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46       int udev_device_get_is_initialized(struct udev_device *udev_device);
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48       const char *udev_device_get_action(struct udev_device *udev_device);
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RETURN VALUE

51       On success, udev_device_get_syspath(), udev_device_get_sysname(),
52       udev_device_get_sysnum(), udev_device_get_devpath(),
53       udev_device_get_devnode(), udev_device_get_devtype(),
54       udev_device_get_subsystem(), udev_device_get_driver() and
55       udev_device_get_action() return a pointer to a constant string that
56       describes the requested property. The lifetime of this string is bound
57       to the device it was requested on. On failure, each function may return
58       NULL.
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60       On success, udev_device_get_devnum() returns the device type of the
61       passed device. On failure, a device type with minor and major number
62       set to 0 is returned.
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64       udev_device_get_udev() always returns a valid pointer to the udev
65       context that this device belongs to.
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67       On success, udev_device_get_parent() and
68       udev_device_get_parent_with_subsystem_devtype() return a pointer to the
69       parent device. No additional reference to this device is acquired, but
70       the child device owns a reference to such a parent device. On failure,
71       NULL is returned.
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73       On success, udev_device_get_is_initialized() returns either 1 or 0,
74       depending on whether the passed device has already been initialized by
75       udev or not. On failure, a negative error code is returned. Note that
76       devices for which no udev rules are defined are never reported
77       initialized.
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SEE ALSO

80       udev_new(3), udev_device_new_from_syspath(3), udev_device_has_tag(3),
81       udev_enumerate_new(3), udev_monitor_new_from_netlink(3),
82       udev_list_entry(3), systemd(1),
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86systemd 239                                         UDEV_DEVICE_GET_SYSPATH(3)
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