USBD_CDC_DataIF_Add

Description

Add a data interface class to CDC.

Files

usbd_cdc.h/usbd_cdc.c

Prototype

CPU_INT08U  USBD_CDC_DataIF_Add (CPU_INT08U    class_nbr,
                                 CPU_BOOLEAN   isoc_en,
                                 CPU_INT08U    protocol,
                                 USBD_ERR     *p_err);

Arguments

class_nbr

CDC instance number.

isoc_en

Data interface isochronous enable.

DEF_ENABLED, Data interface uses isochronous endpoints.

DEF_DISABLED, Data interface uses bulk endpoints.

protocol

Data interface protocol code:

Data interface protocol code	Description

Data interface protocol code	Description
`USBD_CDC_DATA_PROTOCOL_NONE`	No class specific protocol required.
`USBD_CDC_DATA_PROTOCOL_NTB`	Network Transfer Block.
`USBD_CDC_DATA_PROTOCOL_PHY`	Physical interface protocol for ISDN BRI.
`USBD_CDC_DATA_PROTOCOL_HDLC`	HDLC.
`USBD_CDC_DATA_PROTOCOL_TRANS`	Transparent.
`USBD_CDC_DATA_PROTOCOL_Q921M`	Management protocol for Q.921 data link protocol.
`USBD_CDC_DATA_PROTOCOL_Q921`	Data link protocol for Q.921.
`USBD_CDC_DATA_PROTOCOL_Q921TM`	TEI-multiplexor for Q.921 data link protocol
`USBD_CDC_DATA_PROTOCOL_COMPRESS`	Data compression procedures.
`USBD_CDC_DATA_PROTOCOL_Q9131`	Euro-ISDN protocol control.
`USBD_CDC_DATA_PROTOCOL_V24`	V.24 rate adaptation to ISDN.
`USBD_CDC_DATA_PROTOCOL_CAPI`	CAPI Commands.
`USBD_CDC_DATA_PROTOCOL_HOST`	Host based driver.
`USBD_CDC_DATA_PROTOCOL_CDC`	The protocol(s) are described using a Protocol Unit Function Communication Class Interface.
`USBD_CDC_DATA_PROTOCOL_VENDOR`	Vendor-specific.

CDC data interface class protocol codes are defined in the Universal Serial Bus Class Definitions for Communication Devices Revision 2.1 Table 7.

p_err

Pointer to variable that will receive the return error code from this function.

USBD_ERR_NONE

USBD_ERR_ALLOC

USBD_ERR_INVALID_ARG

Returned Value

Data interface number, if no errors.

USBD_CDC_DATA_IF_NBR_NONE, otherwise.

Callers

CDC Subclass drivers.

Notes / Warnings

None.