On Thu, Jul 05, 2001 at 07:16:26PM +0100, Alan Cox wrote: > > I have recently had a problem with the fdomain driver initialisation and > > have found the problem to be the way in which it requests the irq. Here is > > my patch that has so far work ok. > > I've seen this patch before. It needs at least one change > > > - do_fdomain_16x0_intr, 0, "fdomain", NULL); > > + retcode = request_irq( shpnt->irq, > > + do_fdomain_16x0_intr, SA_SHIRQ, "fdomain", shpnt); > > Only set SA_SHIRQ if PCI - say - > > pdev?SA_SHIRQ:0 > > The other problem is that the code doesnt have support for handling IRQ > source checking, so if the line it shares with generates interrupts we might > sometimes do the right thing > > I have a long outstanding request with adaptec (who bought future domain) > for the info needed to fix this, but obviously its a dead product, from a > bought company and hardly on their priorities. > > I suspect the IRQ handler needs to either > > A. Check bit 0 of the status port and return > > B. Check bit 4 or bit 9 of the interrupt control register > > Without docs someone would need to play with the various combinations and > see what happened Uhmmm, an idea would be to look in fd_mcs.c as that driver already has working support for irq-sharing. /David _ _ // David Weinehall <[EMAIL PROTECTED]> /> Northern lights wander \\ // Project MCA Linux hacker // Dance across the winter sky // \> http://www.acc.umu.se/~tao/ </ Full colour fire </ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
