What's new in driver development for Windows 11, version 21H2

This section describes new features and updates for driver development in Windows 11, version 21H2.

Camera

• Digital Window overview
• Privacy shutter notification
• Create device property keys from the MS OS descriptor in USB Video Class (UVC) firmware
• Microsoft extensions to USB Video Class 1.5 specification (Updated)
• Network camera design guide (Updated)

HID

Use Human Interface Device (HID) class devices over a Serial Peripheral Interface (SPI) bus.

• Introduction to HID over SPI
• Architecture and overview for HID over the SPI transport
• Plug and Play support for HID over SPI
• HID over SPI power management
• Error handling for HID over SPI

New API pages:

• hidspicx.h header
• EVT_HIDSPICX_NOTIFY_POWERDOWN
• EVT_HIDSPICX_RESETDEVICE
• HIDSPICX_DEVICE_CONFIG
• HIDSPICX_REPORT
• HidSpiCxDeviceConfigure
• HidSpiCxDeviceInitConfig
• HidSpiCxNotifyDeviceReset

Print devices

• Print support app design guide
• Print support app association

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