Alexander Stein 16fe1ad289 gpio: mcp23s08: Add support for level triggered interrupts ...

The interrupt for the corresponding pin is configured to trigger when the
pin state changes compared to a preconfigured state (Bit set in INTCON).
This state is set by setting/clearing the bit in DEFVAL.
In the interrupt handler we need also to check if the bit in INTCON is set
for level triggered interrupts.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

2016-03-31 10:41:50 +02:00

24 KiB

Raw Blame History

View Raw