On Thu, May 08, 2003 at 01:20:12PM -0700, bhupinder sahran wrote: > SO in the do_irq routine u will have to read the > interrupt controller registers & find out who has > caused the interrupt & then invoke interrupt handler > corressponding to the interrupt number.
Yes, but how do I enable the interrupt in the first place? (Disable too.) I mean, I know how to set the bit, but where is the best place to do so? In the case of a serial port, I figure I could turn it on in startup() in serial.c. But then how do I know which of two possible interrupts it is? I could do something hacky, like look at the UART address and infer from there, but that looks nasty... Thanks, -kb, the Kent who, if has to muck with existing kernel files, wants to do so in an acceptable way. ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
