Hi everybody, I'm trying to write a driver for a custom extension bus mapped in my MPC8248 memory space.
The bus has 32 interrupt lines which are handled by an interrupt controller connected to a single external interrupt on the MPC8248. I've had a look at the Linux interrupt management code, but haven't found any easy API to add an external interrupt controller. Could someone give me a few pointers regarding how to proceed ? I would like to "register" the interrupt controller with the interrupt management core, so that request_irq()/free_irq() could be used with the extra interrupts. Thanks in advance for your help. Best regards, Laurent Pinchart PS: If this is not architecture-specific and should be asked on the linux-kernel mailing list, please let me know.
