Reply by vishnu Tadepalli●November 13, 20102010-11-13
Hi,
Check the datasheet of AT91SAM9261 to see if the chip actually supports
falling edge interrupts.
If it doesn't you cannot use IRQ_TRIGGER_FALLING.
Regards
TVRPrasad
Reply by pana...@yahoo.com●November 13, 20102010-11-13
Hi dear friend,
I'm working on linux2.6.30 kernel for At91sam9261-ek like board,
in our board we have connected the irq pin of ads7846 to a gpio(PIN_PA22)
instead of IRQ2(PIN_PC2), therefore we have encountered a problem in the kernel
for activation of gpio interrupt instead of IRQ.
My question is, How can I redirect the interrupt routine from IRQ to gpio?
Also I have done the following modification in "board-sam9261ek.c" and
"ads7846.c" files but while ADS7846 device is probed still the
function "at91_aic_set_type" is called instead of
"gpio_irq_type".