> I have one.
>
> The board uses a single PCI interrupt when in "native" mode,
> and a pair of interrupts when in "compatibility" mode (IRQ14/15),
> as do *all* compliant PCI IDE controllers.
>
> Note the confusion may simply be that a *single* "IDE controller"
> these days always supports *two* hwif's (interfaces).
>
> The Promise RAID card is identical to the Promise Ultra33 IDE card,
> except for a different on-board BIOS.
I'm not sure about how does the IRQ compatibility mode work. The PCI bus
itself has no chance how to transmit any IRQ different from the standard
IRQ A/B/C/D pins. It must be either a planar device connected to non-PCI
IRQ pins or the BIOS must have routed the standard IRQ pins of that card
to IRQ 14/15. Anyway, if it's a real PCI card and it uses only IRQ A,
there is no chance to have it generate two different IRQ numbers.
Have a nice fortnight
-- Martin `MJ' Mares <mj@ucw.cz> http://atrey.karlin.mff.cuni.cz/~mj/ Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth "Linux hackers are funny people -- they count the time in patchlevels."- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.altern.org/andrebalsa/doc/lkml-faq.html