From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 14 May 2013 20:41:30 +0000 (-0700)
Subject: staging: comedi: usbduxfast: introduce usbduxfast_cmd_data()
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~76^2~637
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=17fdeba07662e68bf3d9a7270292f0fef9c9fe2d;p=pandora-kernel.git

staging: comedi: usbduxfast: introduce usbduxfast_cmd_data()

Introduce a helper function to set the buffer used to transfer
commands to the usb device.

Each command consists of four uint8_t values that are stored at
specific indexes in the buffer. The helper function consolidates
the code that sets the buffer to reduce coding errors and make
the driver a bit easier to understand.

Note, the '0xff & rngmask' can be reduced to simply 'rngmask'
since the rngmask is always an 8-bit value.

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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