On Mon, Apr 18, 2005 at 12:02:52PM -0400, Sanjay Bajaj wrote: > In the device driver open function, I call request_irq() to register > my interrupt handler function to a specified IRQ number. It > succeeds. > But when I enable the interrupt (and we can detect the hardware line > is active) on the hardware, the interrupt handler in NOT invoked. Is > there something I am missing? Any help or pointers are appreciated.
Did you configure polarity and triggering settings for this IRQ source? If not, look for example at ebony.c (ppc4xx_uic_ext_irq_cfg) keeping in mind, that Ebony has 440GP CPU. 440GX has 5 additional IRQ lines. -- Eugene
