> IRQ6 ( bits 13 and 14 ).
it's bits 12 and 13
you had this:
> fcfef802: aa aa 40 00 00 00 00 00 00 00 00 00 00 00 00 00
which make think
fcfef802 = aaaa
fcfef804 = 0040
since you want IRQ6 to be 'low level' which is '00', then you want
fcfef802 = 0000
but yes, the '40' is correct for saying that IRQ6 has been triggered.
> Also, did you mean SDIO instead of I2C above since this is not a touch controller but a SDIO radio module?
Opps, I'm sorry. I got confused (was answering someone else's question about an I2C touch controller).
so...maybe me tell you a 'low level' interrupt is not what you need.