staging: comedi: amplc_dio200: add register shift to board info

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Add `mainshift` member to `struct dio200_board` to hold the amount of
left-shift required for main register offsets.  This is 0 for all the
boards currently supported so it doesn't need initializing explicitly in
any current element of `dio200_boards[]`.  It will be non-zero for some
new boards to be supported by this driver.

Modify the register access functions `dio200_read8()` and
`dio200_write8()` to take the shift into account.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Ian Abbott 2012-10-24 16:48:04 +01:00 • committed by Greg Kroah-Hartman

parent 805afd6bd6

commit 34ed78e8f7

1 changed files with 5 additions and 0 deletions

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drivers/staging/comedi/drivers/amplc_dio200.c

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