MiniportEnableInterrupt

VOID
MiniportEnableInterrupt(
IN NDIS_HANDLE MiniportAdapterContext
);

MiniportEnableInterrupt is an optional function, supplied by some drivers of NICs that support dynamic enabling and disabling of interrupts but do not share an IRQ.

Parameters

MiniportAdapterContext: Specifies the handle to a miniport-allocated context area in which the driver maintains per-NIC state, set up by MiniportInitialize.

Comments

MiniportEnableInterrupt typically enables interrupts by writing a mask to the NIC.

A NIC driver that exports a MiniportDisableInterrupt function need not have a reciprocal MiniportEnableInterrupt function. Such a driver’s MiniportHandleInterrupt function is responsible for re-enabling interrupts on the NIC.

If its NIC does not support dynamic enabling and disabling of interrupts or if it shares an IRQ, the NIC driver must register a MiniportISR function and set RequestIsr to TRUE when it calls NdisMRegisterMiniport. Such a driver’s MiniportISR function must acknowledge each interrupt generated by the NIC and save any necessary interrupt information for the driver’s MiniportHandleInterrupt function.

MiniportEnableInterrupt can be pre-empted by an interrupt.

By default, MiniportEnableInterrupt runs at IRQL DISPATCH_LEVEL.