Messages in this thread Patch in this message | | | From | Ian Abbott <> | Subject | [PATCH 2/2] staging: comedi: ni_6527: reset edge detection registers | Date | Mon, 21 Jul 2014 17:29:06 +0100 |
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`ni6527_reset()` is called to reset various registers when the device is being initialized or deinitialized. The edge detection interrupt is disabled by this function, but the rising and falling edge detection registers are currently left alone. Call `ni6527_set_edge_detection()` to set them to a known, disabled state.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk> --- drivers/staging/comedi/drivers/ni_6527.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c index 57d8d4c..8ea93b5 100644 --- a/drivers/staging/comedi/drivers/ni_6527.c +++ b/drivers/staging/comedi/drivers/ni_6527.c @@ -393,6 +393,9 @@ static void ni6527_reset(struct comedi_device *dev) /* disable deglitch filters on all channels */ ni6527_set_filter_enable(dev, 0); + /* disable edge detection */ + ni6527_set_edge_detection(dev, 0xffffffff, 0, 0); + writeb(NI6527_CLR_IRQS | NI6527_CLR_RESET_FILT, mmio + NI6527_CLR_REG); writeb(NI6527_CTRL_DISABLE_IRQS, mmio + NI6527_CTRL_REG); -- 2.0.0
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