NAME¶

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_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¶