UMDF 2 is the latest version of UMDF and supersedes UMDF 1. All new UMDF drivers should be written using UMDF 2. No new features are being added to UMDF 1 and there is limited support for UMDF 1 on newer versions of Windows 10. Universal Windows drivers must use UMDF 2.
For more info, see Getting Started with UMDF.
The following PnP and power management scenarios show the sequences in which the framework calls a UMDF driver's event callback functions:
- 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
For information about PnP and power management callback sequences for KMDF drivers, see PnP and Power Management Callback Sequences.