Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d1b194...
Commit: d1b1944085ab2345fae4a5fbb614f1a4d0732d3e
Parent: 4a511bc3f5829bc18428bcf11c25417a79d09396
Author: Oliver Neukum <oliver@neukum.org>
AuthorDate: Tue Sep 2 14:16:11 2008 +0200
Committer: Greg Kroah-Hartman <gregkh@suse.de>
CommitDate: Fri Oct 17 14:40:54 2008 -0700
USB: Documentation/usb/anchors.txt #2
This adds Documentation for the extensions of the anchor API.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
Documentation/usb/anchors.txt | 17 +++++++++++++++++
1 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/Documentation/usb/anchors.txt b/Documentation/usb/anchors.txt
index 5e6b64c..6f24f56 100644
--- a/Documentation/usb/anchors.txt
+++ b/Documentation/usb/anchors.txt
@@ -52,6 +52,11 @@ Therefore no guarantee is made that the URBs have been unlinked when
the call returns. They may be unlinked later but will be unlinked in
finite time.
+usb_scuttle_anchored_urbs()
+---------------------------
+
+All URBs of an anchor are unanchored en masse.
+
usb_wait_anchor_empty_timeout()
-------------------------------
@@ -59,4 +64,16 @@ This function waits for all URBs associated with an anchor to finish
or a timeout, whichever comes first. Its return value will tell you
whether the timeout was reached.
+usb_anchor_empty()
+------------------
+
+Returns true if no URBs are associated with an anchor. Locking
+is the caller's responsibility.
+
+usb_get_from_anchor()
+---------------------
+Returns the oldest anchored URB of an anchor. The URB is unanchored
+and returned with a reference. As you may mix URBs to several
+destinations in one anchor you have no guarantee the chronologically
+first submitted URB is returned.
\ No newline at end of file
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