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staging: comedi: pcl818: introduce pcl818_ai_get_fifo_sample()
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Tue, 4 Mar 2014 18:29:40 +0000 (11:29 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 7 Mar 2014 01:06:12 +0000 (17:06 -0800)
commit4206e1be3d713672a255a877b48793ecbae4d2e4
tree73fb023026ba1f85166b1911cccfe4ad227e998ctree | snapshot
parent61ef4719ea7cb3c019c5eefb73eb37390cb55db6commit | diff
staging: comedi: pcl818: introduce pcl818_ai_get_fifo_sample()

To clarify the code, introduce a helper function to read the analog
input data sample from the FIFO and optionally return the channel
that the sample was for. The channel is used to check for dropped
samples.

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/pcl818.c diff | blob | history
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