From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 14 May 2013 21:32:42 +0000 (-0700)
Subject: staging: comedi: dt9812: convert digital out subdevice to (*insn_bits)
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~76^2~612
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=36c973d0896a5319cf3089c20e8d9881bc60297e;p=pandora-kernel.git

staging: comedi: dt9812: convert digital out subdevice to (*insn_bits)

Currently the (*insn_write) function for the digital output subdevice
only sets the state for a single channel. It's more efficent to use
the (*insn_bits) function and allow setting the state for all the
channels.

The comedi core can use the (*insn_bits) to emulate the (*insn_write)
if needed.

Also, use the subdevice 'state' variable to hold the current state
of the channels instead of 'do_shadow' in the private data.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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