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rx2660 serial interrupts

 
Stephen Scheid
Occasional Contributor

rx2660 serial interrupts

We have our own secure OS that runs on the rx2660. We write our own I/O drivers. We can get interrupts from scsi and lan devices, but we cannot get interrupts from the serial port. We enable interrupts in the serial chips IER register (received data and receive line status), and set up and enable the iosapic entry for GSI 16 to interrupt on CPU 0, but we never get any interrupts. Is there something else that needs to be setup to get serial interrupts?