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---
r: 115755
b: refs/heads/master
c: d1b1944
h: refs/heads/master
i:
  115753: 7e4aee9
  115751: 759719f
v: v3
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Oliver Neukum authored and Greg Kroah-Hartman committed Oct 17, 2008
1 parent a906f5d commit 53f2346
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 4a511bc3f5829bc18428bcf11c25417a79d09396
refs/heads/master: d1b1944085ab2345fae4a5fbb614f1a4d0732d3e
17 changes: 17 additions & 0 deletions trunk/Documentation/usb/anchors.txt
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Expand Up @@ -52,11 +52,28 @@ 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()
-------------------------------

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.

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