USBD_CDC_IF

Usb VCP device module. More...

Collaboration diagram for USBD_CDC_IF:

Modules
	USBD_CDC_IF_Exported_Defines
	Defines.
	USBD_CDC_IF_Exported_Types
	Types.
	USBD_CDC_IF_Exported_Macros
	Aliases.
	USBD_CDC_IF_Exported_Variables
	Public variables.
	USBD_CDC_IF_Exported_FunctionsPrototype
	Public functions declaration.
	USBD_CDC_IF_Private_TypesDefinitions
	Private types.
	USBD_CDC_IF_Private_Defines
	Private defines.
	USBD_CDC_IF_Private_Macros
	Private macros.
	USBD_CDC_IF_Private_Variables
	Private variables.
	USBD_CDC_IF_Private_FunctionPrototypes
	Private functions declaration.

Functions
uint8_t	CDC_Transmit_FS (uint8_t *Buf, uint16_t Len)
	CDC_Transmit_FS Data to send over USB IN endpoint are sent over CDC interface through this function. More...

Variables
USBD_CDC_ItfTypeDef	USBD_Interface_fops_FS

Detailed Description

Usb VCP device module.

Function Documentation

CDC_Transmit_FS()

uint8_t CDC_Transmit_FS	(	uint8_t *	Buf,
		uint16_t	Len
	)

CDC_Transmit_FS Data to send over USB IN endpoint are sent over CDC interface through this function.

Note

Parameters

Buf	Buffer of data to be sent
Len	Number of data to be sent (in bytes)

Return values

USBD_OK

if all operations are OK else USBD_FAIL or USBD_BUSY

                                                    {
    uint8_t result = USBD_OK;
    /* USER CODE BEGIN 7 */
    USBD_CDC_HandleTypeDef *hcdc = (USBD_CDC_HandleTypeDef *)hUsbDeviceFS.pClassData;
    if (hcdc->TxState != 0) {
        return USBD_BUSY;
    }
    USBD_CDC_SetTxBuffer(&hUsbDeviceFS, Buf, Len);
    result = USBD_CDC_TransmitPacket(&hUsbDeviceFS);
    /* USER CODE END 7 */
    return result;
}

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Variable Documentation

USBD_Interface_fops_FS

USBD_CDC_ItfTypeDef USBD_Interface_fops_FS

Initial value:

= {
    CDC_Init_FS,
    CDC_DeInit_FS,
    CDC_Control_FS,
    CDC_Receive_FS
}

CDC Interface callback.