Hi Rathin,
Thank you so much for your response.
Basically I am trying to enable interrupts of UART2 on beaglebone black, what are all the register i have to configure to work interrupts work properly.
I am kernel newbie, I started "free-electrons device driver development" course, as part of the course I have to enable interrupts on UART2, using USB to serial cable connect the pins of UART2 open the piccom terminal and if I sent some characters on the UART2 console( picocom) interrupt should be triggered and ISR needs to be called.
But I don't know what are the all the registered needs to be configured.
I am not using debian OS, I downloaded latest 4.9.y kernel and compiled my self and loaded that kernel. and I am using ubuntu 14.04 rootfs.
Any help is appropriated.
Thanks in advance.
Regards,
Madhu