staging: comedi: das800: introduce das800_ind_{write, read}()

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The GAS800_GAIN register contains some bits that enable indirect
writing to additional registers on the board through iobase + 2
and indirect reading of addition registers through iobase + 7.

Introduce some helper functions to handle the indirect register
write/read.

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 18:33:22 -07:00 • committed by Greg Kroah-Hartman

parent fe9b0850ab

commit 0a8fc08910

1 changed files with 39 additions and 23 deletions

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drivers/staging/comedi/drivers/das800.c

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