PnP and Power Management Callback Sequences

The following topics show the sequence in which the framework calls a WDF (KMDF and UMDF v2) driver's PnP and Power Management event callback functions:

• Power-Up Sequence for a Function or Filter Driver
• Power-Up Sequence for a Bus Driver
• Power-Down and Removal Sequence for a Function or Filter Driver
• Power-Down and Removal Sequence for a Bus Driver
• Surprise-Removal Sequence
• WDM IRPs and corresponding WDF event callbacks

The following topics identify typical PnP and power management scenarios and show the sequence in which the framework calls a driver's event callback functions during these scenarios:

• A User Plugs in a Device
• A User Unplugs a Device
• A Device Enters a Low-Power State
• A Device Returns to Its Working State
• The PnP Manager Redistributes System Resources