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udev_device_get_parent_with_subsystem_devtype(): Clarify documentation

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devtype can be NULL, in which case it is ignored for matching.
This commit is contained in:
Martin Pitt 2009-12-03 13:25:19 +01:00
parent 89b6237342
commit 54d4f54e85
1 changed files with 3 additions and 0 deletions
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3
libudev/libudev-device.c
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@ -577,6 +577,9 @@ struct udev_device *udev_device_get_parent(struct udev_device *udev_device)
* value, and fill in information from the sys device and the udev
* database entry.
*
* If devtype is NULL, only subsystem is checked, and any devtype will
* match.
*
* The returned the device is not referenced. It is attached to the
* child device, and will be cleaned up when the child device
* is cleaned up.