USB_DEVICE_MASTER_DESCRIPTOR Structure

USB Device Master Descriptor Structure.

This data type defines the structure of the USB Device Master Descriptor. The application must provide such a structure for each instance of the device layer.

typedef struct {
  const USB_DEVICE_DESCRIPTOR * deviceDescriptor;
  uint8_t configDescriptorCount;
  USB_DEVICE_CONFIGURATION_DESCRIPTORS_TABLE * configDescriptorTable;
  const USB_DEVICE_DESCRIPTOR * highSpeedDeviceDescriptor;
  uint8_t highSpeedConfigDescriptorCount;
  USB_DEVICE_CONFIGURATION_DESCRIPTORS_TABLE * highSpeedConfigDescriptorTable;
  uint8_t stringDescCount;
  USB_DEVICE_STRING_DESCRIPTORS_TABLE * stringDescriptorTable;
  const USB_DEVICE_QUALIFIER * fullSpeedDeviceQualifier;
  const USB_DEVICE_QUALIFIER * highSpeedDeviceQualifier;
  const uint8_t * bosDescriptor;
} USB_DEVICE_MASTER_DESCRIPTOR;

Members

Members	Description
const USB_DEVICE_DESCRIPTOR * deviceDescriptor;	Pointer to standard device descriptor (for low/full speed)
uint8_t configDescriptorCount;	Total number configurations available (for low/full speed)
USB_DEVICE_CONFIGURATION_DESCRIPTORS_TABLE * configDescriptorTable;	Pointer to array of configurations descriptor pointers (for low/full speed)
const USB_DEVICE_DESCRIPTOR * highSpeedDeviceDescriptor;	Pointer to array of high speed standard Device descriptor. Assign this to NULL if not supported.
uint8_t highSpeedConfigDescriptorCount;	Total number of high speed configurations available. Set this to zero if not supported
USB_DEVICE_CONFIGURATION_DESCRIPTORS_TABLE * highSpeedConfigDescriptorTable;	Pointer to array of high speed configurations descriptor pointers. Set this to NULL if not supported
uint8_t stringDescCount;	Total number of string descriptors available (common to all speeds)
USB_DEVICE_STRING_DESCRIPTORS_TABLE * stringDescriptorTable;	Pointer to array of string Descriptor pointers (common to all speeds)
const USB_DEVICE_QUALIFIER * fullSpeedDeviceQualifier;	Pointer to full speed device_qualifier descriptor. Device responds with this descriptor when it is operating at high speed
const USB_DEVICE_QUALIFIER * highSpeedDeviceQualifier;	Pointer to high speed device_qualifier descriptor. Device responds with this descriptor when it is operating at full speed
const uint8_t * bosDescriptor;	Pointer to BOS descriptor for this Device. Device responds with this descriptor when Host sends a GET_DESCRIPTOR request for BOS descriptor

Remarks

This type is specific to implementation of the USB Device Stack API.

USB Libraries Help > USB Device Libraries > USB Device Layer Library > Library Interface > g) Data Types and Constants > USB_DEVICE_MASTER_DESCRIPTOR Structure

MPLAB Harmony USB Stack

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