The IRP_MJ_POWER request controls power management.

When Sent

The power manager uses power requests to query and set power states.

Input Parameters

Request specific

Output Parameters

Request specific

I/O Status Block

Request specific


Serial supports the following power requests:

Serial sends all other power requests down the device stack to be completed by a lower-level driver.

Serial is the default power policy owner for a serial device stack that uses Serial as a function driver or a lower-level filter driver.

For more information about the generic operation of these requests, see Rules for Handling Power IRPs.



Wdm.h (include Wdm.h or Ntddk.h)



Send comments about this topic to Microsoft