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staging: comedi: pcmda12: cleanup pcmda12_ao_insn_write()
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Tue, 4 Jun 2013 02:05:08 +0000 (19:05 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 5 Jun 2013 22:35:38 +0000 (15:35 -0700)
commitf0dc084e13145cd75bab09e08d7b7db84d09e319
tree310d9f4c4637c553259f2eacb72d2fed28b11875tree | snapshot
parentcac10bf92a0678bbc0c336e058f89a4a6e95aa96commit | diff
staging: comedi: pcmda12: cleanup pcmda12_ao_insn_write()

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>
drivers/staging/comedi/drivers/pcmda12.c diff | blob | history
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