staging: comedi: das800: tidy up das800_do_insn_bits()

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Use a couple local variables, mask and bits, to clarify this function.

Its only necessary to update the outputs if the mask indicates that
the bits are changing. Modify this function accordingly. Also, use
the subdevice 'state' variable to hold the actual output channel
state instead of needing to get it from the private data and shift
it.

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

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H Hartley Sweeten 2013-04-22 18:36:28 -07:00 • committed by Greg Kroah-Hartman

parent 264601c231

commit 26234771c1

1 changed files with 12 additions and 11 deletions

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drivers/staging/comedi/drivers/das800.c

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