On Tue, 20 Jun 2006, Russell King wrote: > On Tue, Jun 20, 2006 at 04:39:49PM +0200, Bodo Eggert wrote: > > There are thousands of NE2K-clones, the driver can't know if sharing the IRQ > > will be OK for a given card. Is the change for sharing IRQs trivial enough > > to allow an if/else based on a load-time module parameter? > > Not if it's an ISA card. You need to loop over all interrupt source > devices until you're certain that they have released the interrupt > line before returning, otherwise you will end up with the IRQ line > stuck in a state where it can't cause any further interrupts. > > The kernel has no such infrastructure, except within the serial driver > to allow multiple serial ports to share a common interrupt. What a pity - I hoped for a grab_shared_irq() which would do what you describe. -- Is reading in the bathroom considered Multitasking? - To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html