USB_StdDescriptor_Device_t Struct Reference

Standard USB Device Descriptor (USB-IF naming conventions). More...

#include <StdDescriptors.h>

Data Fields
uint8_t	bLength
uint8_t	bDescriptorType
uint16_t	bcdUSB
uint8_t	bDeviceClass
uint8_t	bDeviceSubClass
uint8_t	bDeviceProtocol
uint8_t	bMaxPacketSize0
uint16_t	idVendor
uint16_t	idProduct
uint16_t	bcdDevice
uint8_t	iManufacturer
uint8_t	iProduct
uint8_t	iSerialNumber
uint8_t	bNumConfigurations

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Detailed Description

Type define for a standard Device Descriptor. This structure uses the relevant standard's given element names to ensure compatibility with the standard.

See also:

USB_Descriptor_Device_t for the version of this type with non-standard LUFA specific element names.

Note:

Regardless of CPU architecture, these values should be stored as little endian.

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Field Documentation

uint16_t USB_StdDescriptor_Device_t::bcdDevice

Product release (version) number.

uint16_t USB_StdDescriptor_Device_t::bcdUSB

BCD of the supported USB specification.

uint8_t USB_StdDescriptor_Device_t::bDescriptorType

Type of the descriptor, either a value in USB_DescriptorTypes_t or a value given by the specific class.

uint8_t USB_StdDescriptor_Device_t::bDeviceClass

USB device class.

uint8_t USB_StdDescriptor_Device_t::bDeviceProtocol

USB device protocol.

uint8_t USB_StdDescriptor_Device_t::bDeviceSubClass

USB device subclass.

uint8_t USB_StdDescriptor_Device_t::bLength

Size of the descriptor, in bytes.

uint8_t USB_StdDescriptor_Device_t::bMaxPacketSize0

Size of the control (address 0) endpoint's bank in bytes.

uint8_t USB_StdDescriptor_Device_t::bNumConfigurations

Total number of configurations supported by the device.

uint16_t USB_StdDescriptor_Device_t::idProduct

Unique product ID for the USB product.

uint16_t USB_StdDescriptor_Device_t::idVendor

Vendor ID for the USB product.

uint8_t USB_StdDescriptor_Device_t::iManufacturer

String index for the manufacturer's name. The host will request this string via a separate control request for the string descriptor.

Note:

If no string supplied, use NO_DESCRIPTOR.

uint8_t USB_StdDescriptor_Device_t::iProduct

String index for the product name/details.

See also:

ManufacturerStrIndex structure entry.

uint8_t USB_StdDescriptor_Device_t::iSerialNumber

String index for the product's globally unique hexadecimal serial number, in uppercase Unicode ASCII.

Note:

On some microcontroller models, there is an embedded serial number in the chip which can be used for the device serial number. To use this serial number, set this to USE_INTERNAL_SERIAL. On unsupported devices, this will evaluate to 0 and will cause the host to generate a pseudo-unique value for the device upon insertion.

See also:

ManufacturerStrIndex structure entry.

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The documentation for this struct was generated from the following file:

• Drivers/USB/Core/StdDescriptors.h