staging: comedi: ni_at_ao: tidy up the calibration subdevice

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The AT-AO-6/10 boards use DAC8800 TrimDACs to software calibrate the
analog output channels. These are exposed to the user as a calibration
subdevice.

Tidy up, and document, the calibration subdevice.

Since the TrimDACs are not readable, store the calibration values in the
private data for the user to read back as needed.

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 2013-09-30 17:51:54 -07:00 • committed by Greg Kroah-Hartman

parent 4fbb2e92ca

commit 12c15b195f

1 changed files with 88 additions and 51 deletions

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drivers/staging/comedi/drivers/ni_at_ao.c

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