NXP Semiconductors LPC43 Series User Manual

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NXP Semiconductors LPC43 Series User Manual Manual pdf 636 page image

UM10503 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.User manual Rev. 1.3 — 6 July 2012 636 of 1269NXP Semiconductors UM10503Chapter 25: LPC43xx USB API25.5.18 _USB_DEVICE_QUALIFIER_DESCRIPTOR25.5.19 _USB_DFU_FUNC_DESCRIPTORTable 509. _USB_CORE_DESCS_T class structureMember Descriptiondevice_desc uint8_t *uint8_t* _USB_CORE_DESCS_T::device_descPointer to USB device descriptorstring_desc uint8_t *uint8_t* _USB_CORE_DESCS_T::string_descPointer to array of USB string descriptorsfull_speed_desc uint8_t *uint8_t* _USB_CORE_DESCS_T::full_speed_descPointer to USB device configuration descriptor when device is operating in full speed mode.high_speed_desc uint8_t *uint8_t* _USB_CORE_DESCS_T::high_speed_descPointer to USB device configuration descriptor when device is operating in high speed mode.For full-speed only implementation this pointer should be same as full_speed_desc.device_qualifier uint8_t *uint8_t* _USB_CORE_DESCS_T::device_qualifierPointer to USB device qualifier descriptor. For full-speed only implementation this pointershould be set to null (0).Table 510. _USB_DEVICE_QUALIFIER_DESCRIPTOR class structureMember DescriptionbLength uint8_tuint8_t _USB_DEVICE_QUALIFIER_DESCRIPTOR::bLengthSize of descriptorbDescriptorType uint8_tuint8_t _USB_DEVICE_QUALIFIER_DESCRIPTOR::bDescriptorTypeDevice Qualifier TypebcdUSB uint16_tuint16_t _USB_DEVICE_QUALIFIER_DESCRIPTOR::bcdUSBUSB specification version number (e.g., 0x0200H for V2.00)bDeviceClass uint8_tuint8_t _USB_DEVICE_QUALIFIER_DESCRIPTOR::bDeviceClassClass CodebDeviceSubClass uint8_tuint8_t _USB_DEVICE_QUALIFIER_DESCRIPTOR::bDeviceSubClassSubClass CodebDeviceProtocol uint8_tuint8_t _USB_DEVICE_QUALIFIER_DESCRIPTOR::bDeviceProtocolProtocol CodebMaxPacketSize0 uint8_tuint8_t _USB_DEVICE_QUALIFIER_DESCRIPTOR::bMaxPacketSize0Maximum packet size for other speedbNumConfigurations uint8_tuint8_t _USB_DEVICE_QUALIFIER_DESCRIPTOR::bNumConfigurationsNumber of Other-speed ConfigurationsbReserved uint8_tuint8_t _USB_DEVICE_QUALIFIER_DESCRIPTOR::bReservedReserved for future use, must be zero