Usb_cdc [USB Stack Device]

Collaboration diagram for Usb_cdc:

Data Structures
struct	_CDCHeaderDescriptor
struct	_CDCUnionDescriptor
struct	_CDCCallManagementDescriptor
struct	_CDCAbstractControlManagementDescriptor
struct	_CDCSerialState
struct	_CDCLineCoding
Modules
	USB CDC Specification Release Numbers
	CDC Descriptor Types
	CDC Descriptor Subtypes
	USB CDC Device Descriptor Values
	USB CDC Communication Interface Descriptor
	USB CDC Data Interface Values
	USB CDC CallManagement Capabilities
	USB CDC ACM Capabilities
	CDC SerialState bits
	USB CDC Request Codes
	USB CDC ControlLineState bitmap
	USB CDC LineCoding StopBits
	USB CDC LineCoding ParityCheckings
Functions
void	CDCLineCoding_Initialize (CDCLineCoding *lineCoding, uint32_t bitrate, uint8_t stopbits, uint8_t parity, uint8_t databits)
uint8_t	CDCSetControlLineStateRequest_IsDtePresent (const USBGenericRequest *request)
uint8_t	CDCSetControlLineStateRequest_ActivateCarrier (const USBGenericRequest *request)
struct _CDCHeaderDescriptor	__attribute__ ((__packed__)) CDCHeaderDescriptor
USB CDC Subclass IDs
#define	CDC_SUBCLASS_DLCM   0x01
	Direct Line Control Model.
#define	CDC_SUBCLASS_ACM   0x02
	Abstract Control Model.
#define	CDC_SUBCLASS_TCM   0x03
	Telephone Control Model.
#define	CDC_SUBCLASS_MCCM   0x04
	Multi-Channel Control Model.
#define	CDC_SUBCLASS_CCM   0x05
	CAPI Control Model.
#define	CDC_SUBCLASS_ETH   0x06
	Ethernet Networking Control Model.
#define	CDC_SUBCLASS_ATM   0x07
	ATM Networking Control Model.
USB CDC Communication Interface Protocol IDs
#define	CDC_PROTOCOL_V25TER   0x01
	Common AT commands.
USB CDC Data Interface Protocol IDs
#define	CDC_PROTOCOL_I430   0x30
	ISDN BRI.
#define	CDC_PROTOCOL_HDLC   0x31
	HDLC.
#define	CDC_PROTOCOL_TRANS   0x32
	Transparent.
#define	CDC_PROTOCOL_Q921M   0x50
	Q.921 management protocol.
#define	CDC_PROTOCOL_Q921   0x51
	Q.931 [sic] Data link protocol.
#define	CDC_PROTOCOL_Q921TM   0x52
	Q.921 TEI-multiplexor.
#define	CDC_PROTOCOL_V42BIS   0x90
	Data compression procedures.
#define	CDC_PROTOCOL_Q931   0x91
	Euro-ISDN protocol control.
#define	CDC_PROTOCOL_V120   0x92
	V.24 rate adaption to ISDN.
#define	CDC_PROTOCOL_CAPI20   0x93
	CAPI Commands.
#define	CDC_PROTOCOL_HOST   0xFD
	Host based driver.
#define	CDC_PROTOCOL_PUFD   0xFE
	Describes the Protocol Unit Functional Descriptors [sic] on Communication Class Interface.

---

Function Documentation

struct _CDCHeaderDescriptor __attribute__

(

(__packed__)

)

USB CDC SerialState struct (bitmap)

void CDCLineCoding_Initialize	(	CDCLineCoding *	lineCoding,
		uint32_t	bitrate,
		uint8_t	stopbits,
		uint8_t	parity,
		uint8_t	databits
	)

Initializes the bitrate, number of stop bits, parity checking and number of data bits of a CDCLineCoding object.

Parameters:

	lineCoding	Pointer to a CDCLineCoding instance.
	bitrate	Bitrate of the virtual COM connection.
	stopbits	Number of stop bits (USB CDC LineCoding StopBits CDC LineCoding StopBits).
	parity	Parity check type (USB CDC LineCoding ParityCheckings CDC LineCoding ParityChecking).
	databits	Number of data bits.

uint8_t CDCSetControlLineStateRequest_ActivateCarrier

(

const USBGenericRequest *

request

)

Notifies if the given request indicates that the device carrier should be activated.

Parameters:

request

Pointer to a USBGenericRequest instance.

Returns:

1 is the device should activate its carrier, 0 otherwise.

uint8_t CDCSetControlLineStateRequest_IsDtePresent

(

const USBGenericRequest *

request

)

Notifies if the given request indicates that the DTE signal is present.

Parameters:

request

Pointer to a USBGenericRequest instance.

Returns:

1 if the DTE signal is present, otherwise 0.