This file provides the high layer firmware functions to manage the following functionalities of the USB CDC Class: More...

#include "usbd_cdc.h"
#include "usbd_ctlreq.h"

Include dependency graph for usbd_cdc.c:

Functions
static uint8_t	USBD_CDC_Init (USBD_HandleTypeDef *pdev, uint8_t cfgidx)
	USBD_CDC_Init Initialize the CDC interface.
static uint8_t	USBD_CDC_DeInit (USBD_HandleTypeDef *pdev, uint8_t cfgidx)
	USBD_CDC_Init DeInitialize the CDC layer.
static uint8_t	USBD_CDC_Setup (USBD_HandleTypeDef pdev, USBD_SetupReqTypedef req)
	USBD_CDC_Setup Handle the CDC specific requests.
static uint8_t	USBD_CDC_DataIn (USBD_HandleTypeDef *pdev, uint8_t epnum)
	USBD_CDC_DataIn Data sent on non-control IN endpoint.
static uint8_t	USBD_CDC_DataOut (USBD_HandleTypeDef *pdev, uint8_t epnum)
	USBD_CDC_DataOut Data received on non-control Out endpoint.
static uint8_t	USBD_CDC_EP0_RxReady (USBD_HandleTypeDef *pdev)
	USBD_CDC_EP0_RxReady Handle EP0 Rx Ready event.
static uint8_t *	USBD_CDC_GetFSCfgDesc (uint16_t *length)
	USBD_CDC_GetFSCfgDesc Return configuration descriptor.
static uint8_t *	USBD_CDC_GetHSCfgDesc (uint16_t *length)
	USBD_CDC_GetHSCfgDesc Return configuration descriptor.
static uint8_t *	USBD_CDC_GetOtherSpeedCfgDesc (uint16_t *length)
	USBD_CDC_GetOtherSpeedCfgDesc Return configuration descriptor.
uint8_t *	USBD_CDC_GetDeviceQualifierDescriptor (uint16_t *length)
	USBD_CDC_GetDeviceQualifierDescriptor return Device Qualifier descriptor.
uint8_t	USBD_CDC_RegisterInterface (USBD_HandleTypeDef pdev, USBD_CDC_ItfTypeDef fops)
	USBD_CDC_RegisterInterface.
uint8_t	USBD_CDC_SetTxBuffer (USBD_HandleTypeDef pdev, uint8_t pbuff, uint32_t length)
	USBD_CDC_SetTxBuffer.
uint8_t	USBD_CDC_SetRxBuffer (USBD_HandleTypeDef pdev, uint8_t pbuff)
	USBD_CDC_SetRxBuffer.
uint8_t	USBD_CDC_TransmitPacket (USBD_HandleTypeDef *pdev)
	USBD_CDC_TransmitPacket Transmit packet on IN endpoint.
uint8_t	USBD_CDC_ReceivePacket (USBD_HandleTypeDef *pdev)
	USBD_CDC_ReceivePacket prepare OUT Endpoint for reception.

Variables
static __ALIGN_BEGIN uint8_t USBD_CDC_DeviceQualifierDesc[USB_LEN_DEV_QUALIFIER_DESC]	__ALIGN_END
USBD_ClassTypeDef	USBD_CDC
static uint8_t	CDCInEpAdd = CDC_IN_EP
static uint8_t	CDCOutEpAdd = CDC_OUT_EP
static uint8_t	CDCCmdEpAdd = CDC_CMD_EP

Detailed Description

This file provides the high layer firmware functions to manage the following functionalities of the USB CDC Class:

Author

MCD Application Team

Initialization and Configuration of high and low layer
Enumeration as CDC Device (and enumeration for each implemented memory interface)
OUT/IN data transfer
Command IN transfer (class requests management)
Error management

Attention

This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.

*
*          ===================================================================
*                                CDC Class Driver Description
*          ===================================================================
*           This driver manages the "Universal Serial Bus Class Definitions for Communications Devices
*           Revision 1.2 November 16, 2007" and the sub-protocol specification of "Universal Serial Bus
*           Communications Class Subclass Specification for PSTN Devices Revision 1.2 February 9, 2007"
*           This driver implements the following aspects of the specification:
*             - Device descriptor management
*             - Configuration descriptor management
*             - Enumeration as CDC device with 2 data endpoints (IN and OUT) and 1 command endpoint (IN)
*             - Requests management (as described in section 6.2 in specification)
*             - Abstract Control Model compliant
*             - Union Functional collection (using 1 IN endpoint for control)
*             - Data interface class
*
*           These aspects may be enriched or modified for a specific user application.
*
*            This driver doesn't implement the following aspects of the specification
*            (but it is possible to manage these features with some modifications on this driver):
*             - Any class-specific aspect relative to communication classes should be managed by user application.
*             - All communication classes other than PSTN are not managed
*
*

Definition in file usbd_cdc.c.

Functions

Variables

Detailed Description