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USB Device Stack User Guide
USB Device Stack User Guide
  1. Home
  2. 4 USB Device Stack API Documentation
  3. 4.4 Module Documentation
  4. 4.4.4 USB Descriptor Definitions
  5. 4.4.4.1 Module description
  6. 4.4.4.1.1 Definitions

  • Introduction
  • 1 USB Device Stack Acronyms and Abbreviations

    This section describes commonly used acronyms and abbreviations throughout this document, ordered by first appearance.

  • 2 USB Device Stack Architecture
  • 3 User Guide
  • 4 USB Device Stack API Documentation
    • 4.1 Project MISRA C:2012 deviations
    • 4.2 Specific MISRA C:2012 deviations
    • 4.3 Supported MISRA C:2012 Rules
    • 4.4 Module Documentation
      • 4.4.1 USB Communications Device Class (CDC)
      • 4.4.2 USB Common Elements
      • 4.4.3 USB Core Layer
      • 4.4.4 USB Descriptor Definitions
        • 4.4.4.1 Module description
          • 4.4.4.1.1 Definitions
        • 4.4.4.2 Definition Documentation
      • 4.4.5 USB Core Events
      • 4.4.6 USB Core Requests
      • 4.4.7 USB Core Transfer
      • 4.4.8 USB Protocol
      • 4.4.9 USB Human Interface Device (HID)
      • 4.4.10 USB Human Interface Device (HID) Keyboard
      • 4.4.11 USB Human Interface Device (HID) Mouse
      • 4.4.12 USB Human Interface Device (HID) Transfer
      • 4.4.13 USB Peripheral Hardware Abstraction Layer (HAL)
      • 4.4.14 USB Peripheral AVR DU
      • 4.4.15 USB Peripheral Endpoint
      • 4.4.16 USB Peripheral Read/Write
      • 4.4.17 USB Vendor Class
    • 4.5 Data Structure Documentation
    • 4.6 File Documentation
  • 5 Document Revision History
  • Microchip Information

4.4.4.1.1 Definitions

  • #define USB_DEFAULT_INTERFACE 0u

    Default interface number.

  • #define USB_DEFAULT_ALTERNATE_SETTING 0u

    Default alternate setting.

  • #define USB_DESCRIPTOR_SEARCH_LIMIT 30u

    The number of descriptors NextDescriptorPointerGet will search through before returning an error.

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.

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