mei: bus: enable non-blocking RX

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Enable non-blocking receive for drivers on mei bus, this allows checking
for data availability by mei client drivers. This is most effective for
fixed address clients, that lacks flow control.

This function adds new API function mei_cldev_recv_nonblock(), it
retuns -EGAIN if function will block.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Alexander Usyskin 2016-12-03 00:15:25 +02:00 • committed by Greg Kroah-Hartman

parent a2eb0fc07f

commit 076802d006

4 changed files with 41 additions and 7 deletions

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6

include/linux/mei_cl_bus.h

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