Data Types

Data Types used by USB Device component. More...

Structures
struct	USBD_STATE
	USB Device State structure. More...
struct	USB_SETUP_PACKET
	USB Setup Packet structure. More...
struct	CDC_LINE_CODING
	CDC Line Coding structure. More...
struct	CDC_NCM_NTB_PARAM
	CDC NCM NTB Parameters structure. More...

Description

Data Types used by USB Device component.

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Data Structure Documentation

USBD_STATE

struct USBD_STATE

USB Device State structure.

Used in

• Function: USBD_GetState;

Data Fields
uint32_t	vbus: 1	USB Device VBUS state.
uint32_t	speed: 2	USB Device enumerated speed (USB_SPEED_LOW, USB_SPEED_FULL or USB_SPEED_HIGH)
uint32_t	active: 1	USB Device bus activity.

USB_SETUP_PACKET

struct USB_SETUP_PACKET

USB Setup Packet structure.

Used in

• USB Device Function: USBD_CustomClassn_Endpoint0_SetupPacketReceived; USBD_CustomClassn_Endpoint0_SetupPacketProcessed;

Used in

• USB Host Function: USBH_ControlTransfer;

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

CDC_LINE_CODING

struct CDC_LINE_CODING

CDC Line Coding structure.

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

CDC_NCM_NTB_PARAM

struct CDC_NCM_NTB_PARAM

CDC NCM NTB Parameters structure.

Used in

• USB Device Function: USBD_CDCn_NCM_GetNtbParameters;

Data Fields
uint16_t	wLength	Size of this structure, in bytes = 1Ch.
uint16_t	bmNtbFormatsSupported	Bit 0: 16-bit NTB supported (set to 1), Bit 1: 32-bit NTB supported, Bits 2 .. 15: reserved.
uint32_t	dwNtbInMaxSize	IN NTB Maximum Size in bytes.
uint16_t	wNdpInDivisor	Divisor used for IN NTB Datagram payload alignment.
uint16_t	wNdpInPayloadRemainder	Remainder used to align input datagram payload within the NTB.
uint16_t	wNdpInAlignment	NDP alignment modulus for NTBs on the IN pipe. Shall be a power of 2, and shall be at least 4.
uint32_t	dwNtbOutMaxSize	OUT NTB Maximum Size.
uint16_t	wNdpOutDivisor	OUT NTB Datagram alignment modulus.
uint16_t	wNdpOutPayloadRemainder	Remainder used to align output datagram payload offsets within the NTB.
uint16_t	wNdpOutAlignment	NDP alignment modulus for use in NTBs on the OUT pipe. Shall be a power of 2, and shall be at least 4.