staging: comedi: ni_daq_700: add mux settling delay
authorIan Abbott <abbotti@mev.co.uk>
Mon, 19 May 2014 10:29:04 +0000 (11:29 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 23 May 2014 16:31:35 +0000 (01:31 +0900)
commitffed54dced86723f352323f15789d9ad6bee25e1
tree39d666af5d6c06ccf850cdf8b3de50a6e3c1f5b2
parent478da752d0cf652fb3b5d82e2ece94e92724de88
staging: comedi: ni_daq_700: add mux settling delay

I got a patch from the original author, Fred Brooks, to add a small
settling delay after setting the AI channel multiplexor.  The lack of
delay resulted in unstable or scrambled data on faster processors.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reported-by: Fred Brooks <nsaspook@nsaspook.com>
Cc: <stable@vger.kernel.org> # 3.7.x - 3.15.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/ni_daq_700.c