staging: comedi: cb_pcimdas: support analog input programmable ranges

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The hardware uses a switch on the board to select if the analog inputs
are bipolar or uinipolar. The gain is programmable to allow the following
input ranges:

  Gain  Bipolar   Unipolar
    0   +/-10V    0 to 10V
    1   +/-5V     0 to 5V
    2   +/-2.5V   0 to 2.5V
    3   +/-1.25V  0 to 1.25V

Add the necessary code to the driver to allow the user to select the
desired range.

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 2015-02-25 16:28:39 -07:00 • committed by Greg Kroah-Hartman

parent 532a411e8b

commit c7549d770a

1 changed files with 38 additions and 4 deletions

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drivers/staging/comedi/drivers/cb_pcimdas.c

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