staging: comedi: adv_pci1723: use comedi_subdevice readback for 'ao_data'

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Use the comedi_subdevice 'readback' member and the core provided (*insn_read)
to handle the readback of the write-only analog output subdevice. Remove the
then unused 'ao_data' member from the private data.

The private data is now unnecessary. Remove it and the allocation.

For aesthetics, rename the (*insn_write) function and tidy it up a bit.

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 2014-11-21 14:22:31 -07:00 • committed by Greg Kroah-Hartman

parent 5317f9a629

commit c8a14b924c

1 changed files with 18 additions and 39 deletions

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drivers/staging/comedi/drivers/adv_pci1723.c

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