I am trying to use my Drum Hat with interrupts on ALERT PIN, which is connected to GPIO25 on raspberry pi (i am using RPI 2B).
The problem is that I can’t detect any interrupt on GPIO25, even when my INT bit is set in Main Control Register. I can clear INT bit and when a pad is touched, Main Control Register goes back to 0x01, but I still have no changes on GPIO25.
I checked register 0x27 about interrupt enable, and it is properly set at 0xFF. I setted back all registers with default values.
Someone have any idea to help me with these interrupts?