staging: comedi: pcmad: fix analog input data on pcmad12

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According to the PCM-A/D-12/16 Operations Manual:

NOTE: On the PCM-A/D-12 the lower nibble of the hex value will always be 0.

Fix the pcmad_ai_insn_read() function to properly handle this by shifting
the data after it has been read.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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H Hartley Sweeten 2013-06-05 15:38:57 -07:00 • committed by Greg Kroah-Hartman

parent 7ecc5370de

commit 3170b2565f

1 changed files with 4 additions and 0 deletions

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drivers/staging/comedi/drivers/pcmad.c

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