RE: Power Managment in Ndis

Hi,

The UNLOAD handler will never be called if you support power management.

If say you don’t support the right combination like for instance the driver says that it supports D3 and you and try to put the system into hibernate (D4) then it cribs with a dialog box saying that “xxx” driver is not allowing the system to go into hibernate.

Rgds,
Ramit.

Hi Devs,

How does Ndis handle hibernate requests & stand by reuests for NIC Miniport
drivers ? I know these request come as OID_PNP_QUERY_POWER and
OID_PNP_SET_POWER queries. But i’d like tio know in which cases the driver
will get unloded.
Assume the NIC Driver states it supports Lowest power state from which it
can wakeup as D3 in OID_PNP_CAPABILITIES, in this scenario will the NIC
Miniport driver be unloaded or not during Hibernation ? What is the
expected and correct behaviour ?

For Ndis Miniport Driver with WDM lower edge is there any hard & fast rule
about Power management support ?

Regards
AN


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