From: Martin Pitt <martin.pitt@ubuntu.com>
Date: Thu, 3 Dec 2009 12:25:19 +0000 (+0100)
Subject: udev_device_get_parent_with_subsystem_devtype(): Clarify documentation
X-Git-Tag: 174~690
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=54d4f54e852cfe91246b8519e8daf48c52a3afa0;hp=89b62373422097a8eb6c1540bd41a572ed573fe6

udev_device_get_parent_with_subsystem_devtype(): Clarify documentation

devtype can be NULL, in which case it is ignored for matching.
---

diff --git a/libudev/libudev-device.c b/libudev/libudev-device.c
index 5d1ad9f22..4717b582b 100644
--- a/libudev/libudev-device.c
+++ b/libudev/libudev-device.c
@@ -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.