staging: comedi: pcl816: introduce pcl816_ai_clear_eoc()

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Introduce a helper function to clear the end-of-conversion flag.

This flag is set when an analog input conversion is finished and the
hardware generates an interrupt request. Writing any value to the
register resets the flag and re-enables the interrupt.

Move the call in pcl816_ai_cancel() so that the flag is reset after
stopping the A/D.

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>

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H Hartley Sweeten 2014-03-04 11:30:04 -07:00 • committed by Greg Kroah-Hartman

parent 079dc9fe77

commit 97880eaf9b

1 changed files with 13 additions and 10 deletions

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drivers/staging/comedi/drivers/pcl816.c

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