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(parent: 7ecc537) | patch
staging: comedi: pcmad: fix analog input data on pcmad12
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Wed, 5 Jun 2013 22:38:57 +0000 (15:38 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 6 Jun 2013 19:01:35 +0000 (12:01 -0700)
commit3170b2565fb2ef37af0d760ca2bde0d8d1f81910
tree0614da6be4110cefe2bdd9d57b737efd6e0aebd2tree | snapshot (tar.gz zip)
parent7ecc5370de1562b2410604ed78aec087e55c06cfcommit | diff
staging: comedi: pcmad: fix analog input data on pcmad12

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>
drivers/staging/comedi/drivers/pcmad.c diff | blob | blame | history