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-rw-r--r--Documentation/usb/anchors.txt12
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/usb/anchors.txt b/Documentation/usb/anchors.txt
index 7304bcf5a306..5e6b64c20d25 100644
--- a/Documentation/usb/anchors.txt
+++ b/Documentation/usb/anchors.txt
@@ -42,9 +42,21 @@ This function kills all URBs associated with an anchor. The URBs
42are called in the reverse temporal order they were submitted. 42are called in the reverse temporal order they were submitted.
43This way no data can be reordered. 43This way no data can be reordered.
44 44
45usb_unlink_anchored_urbs()
46--------------------------
47
48This function unlinks all URBs associated with an anchor. The URBs
49are processed in the reverse temporal order they were submitted.
50This is similar to usb_kill_anchored_urbs(), but it will not sleep.
51Therefore no guarantee is made that the URBs have been unlinked when
52the call returns. They may be unlinked later but will be unlinked in
53finite time.
54
45usb_wait_anchor_empty_timeout() 55usb_wait_anchor_empty_timeout()
46------------------------------- 56-------------------------------
47 57
48This function waits for all URBs associated with an anchor to finish 58This function waits for all URBs associated with an anchor to finish
49or a timeout, whichever comes first. Its return value will tell you 59or a timeout, whichever comes first. Its return value will tell you
50whether the timeout was reached. 60whether the timeout was reached.
61
62