From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 4 Feb 2013 23:43:56 +0000 (-0700)
Subject: staging: comedi: quatech_daqp_cs: use (*insn_bits) for digital inputs
X-Git-Tag: v3.9-rc1~127^2~123
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=62100fefbc4f7f45149df1f537de17b4acf01391;p=pandora-kernel.git

staging: comedi: quatech_daqp_cs: use (*insn_bits) for digital inputs

Change the subdevice operation used to read the digital inputs from
a (*insn_read) to a (*insn_bits) function. The (*insn_read) functions
are expected to read 'insn->n' number of samples. The (*insn_bits)
functions just read a single sample (insn->n = 1). Change the return
from '1' to 'insn->n' to clarify what the return is.

Also, set the 'maxdata' for the subdevice. For digital io this value
should be '1' (digital io can only be 1 or 0).

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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