Hi,
I am writing some Diagnostics code for a UART
chip. I was able to write most of our test cases from application space
using inb/outb calls.
To test the 'interrupts' generated by this device, i decided to use the
same application space program to cause interrupts to be generated in
the device and write a simple kernel module which just registers for the
static IRQ line (4 in this case) using the request_irq() call and
implements the ISR .
On 'insmod', i am able to see the registered module in /proc/interrupts.
The kernel i am using is 2.6.18.
On running the application program, I can see that a interrupt is
generated in the UART.( By checking the respective register)
But, the ISR I have registered is not getting called. I have tried
registering the interrupt with and without sharing, with the same result.
Am i missing something ?
Thanks and regards
Chitra
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