Paul Brook wrote:
IMHO the sync interrupt doesn't need to be different from to any other
interrupt.
If the interrupt is the same for sync and service request, then the
driver will have to read two status register bits to see which interrupt
is set before the interrupt is serviced and then write back to clear the
interrupt.
Chances are you're going to have to do that anyway because you might be on a
shared interrupt line.
IIUC, shared PCI interrupts are handled by a Kernel driver. It is
transparent to the device driver for the PCI card.
--
JRT
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