Serial Port Driver- Interrupt Invoking Problem
I am trying to override Interrupt Vector Table, using function.
When i send data from other PC to this linux PC, i find that
IRQ 4 interrupt is not invoked.
I checked for following:
1) request_irq(...) returns success which indicated that IVT is modified.
2) Interrupt Enable bit 0 is set to 1,to enable interrupt for incoming data on serial port.
3) Looking at file /proc/Interrupt, i see that mydriver interrupt is
Please help, i need to find out why my interrupt is not being invoked,or if it is ,then why interrupt handler is not being called.