staging: comedi: pcmda12: cleanup pcmda12_ao_insn_write()

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Only the last value needs to be saved for readback.

Remove the LSB and MSB macros.

(*insn_write) functions should return an errno or the number of
samples actually read. Change the final return to insn->n to
make this clear.

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 2013-06-03 19:05:08 -07:00 • committed by Greg Kroah-Hartman

parent cac10bf92a

commit f0dc084e13

1 changed files with 12 additions and 20 deletions

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drivers/staging/comedi/drivers/pcmda12.c

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