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CVS: cvs.openbsd.org: src

Module name:	src
Changes by:	damien_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org	2006/09/20 13:47:17

Modified files:
	sys/dev/usb    : if_uath.c if_uathvar.h 

Log message:
implement a zero-copy RX data path.
instead of copying the xfer buffer's content into a mbuf cluster, attach
the xfer buffer as a mbuf external storage and pass it to the net80211
layer as is.
maintain a reference count on the softc structure and wait in detach()
until all references have been released by the network layer.

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