A.Jena@cs.ucl.ac.uk (Ajit Kumar Jena) (06/28/91)
Hi netters, I am interested in writing a device driver for the network interface card that sits on the 80386-based PC BUS. My UNIX version is SCO UNIX386. When a packet arrives from the network, hardware interrupt is generated on the IRQ2 line and I have coded the interrupt handler routine "lanintr". My problem is to pass this data to the user process asynchronously. I was reading about the SOFTWARE interrupt mechanism of 4.3BSD UNIX. How does one generate it ? Is it the same as "psignal" system call ? Please email me your tips, suggestions etc. Thanks in advance. A.Jena@cs.ucl.ac.uk