serial driever irq problem
 

Hi,
I'm working on a "stand alone" (not registered with serial.core) serial driver and i can't get m irq handler to e called.
I register the irq line (4) with irq_register() and don't get an error code.
I then activate the irq on the serial port and generate traffic on the line but my irq handler is never called.

I have seen in the boot log that the acpi was doing something with the irq 4 so I disabled it (acpi=off as kernel boot parameter) but it seems to have no effect.

I actually work on a 2.6.24 kernel with the 8250 driver compiled as module (i unload it before trying my module)

can someone help me ?
thanks in advance,