Structures

Structures of USB Device component. More...

Structures
struct	USB_SETUP_PACKET
	USB Setup Packet. More...
struct	CDC_LINE_CODING
	CDC Line Coding structure. More...
struct	usbd_msc_data_t
	USB Device Mass Storage data structure (containing runtime values for MSC device instance) More...

Description

Structures of USB Device component.

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Data Structure Documentation

struct USB_SETUP_PACKET

USB Setup Packet.

Used in

• USB Device Function: USBD_CustomClassn_Endpoint0_SetupPacketReceived; USBD_CustomClassn_Endpoint0_SetupPacketProcessed;

Used in

• USB Host Function: USBH_DefaultPipeSendSetup; USBH_ControlTransfer;

Data Fields
USB_REQUEST_TYPE	bmRequestType	Characteristics of request.
uint8_t	bRequest	Specific request.
uint16_t	wIndex	Index or Offset according to request.
uint16_t	wLength	Number of bytes to transfer if there is a Data stage.
uint16_t	wValue	Value according to request.

struct CDC_LINE_CODING

CDC Line Coding structure.

Format of the data returned when a GetLineCoding request is received (usbcdc11.pdf, 6.2.13)

Used in

• USB Device Function: USBD_CDCn_ACM_SetLineCoding; USBD_CDCn_ACM_GetLineCoding;

Used in

• USB Host Function: USBH_CDC_ACM_SetLineCoding; USBH_CDC_ACM_GetLineCoding;

Data Fields
uint8_t	bCharFormat	Number of stop bits.
uint8_t	bDataBits	Number of data bits.
uint8_t	bParityType	Parity bit type.
uint32_t	dwDTERate	Data terminal rate in bits per second.

struct usbd_msc_data_t

USB Device Mass Storage data structure (containing runtime values for MSC device instance)

Data Fields
uint32_t	block	read/write operation block
uint8_t *	block_buf	data buffer for media data read/write
uint32_t	block_count	media total number of blocks
uint32_t	block_group	blocks available size in cache
uint32_t	block_size	media block size
uint32_t	bulk_len	bulk in/out length
uint32_t	bulk_req_len	bulk in/out requested length
uint8_t	bulk_stage	bulk stage
MSC_CBW	cbw	command block wrapper
MSC_CSW	csw	command status wrapper
uint32_t	length	read write operation remaining length
bool	media_ready	media ready flag (Legacy Support)
bool	mem_ok	memory verify status
uint32_t	memory_size	media memory size (Legacy Support)
uint32_t	offset	read/write operation offset
uint8_t	request_sense	current request sense information