The following structures provide the USB device descriptors required for USB Device with a single interface CDC.

It is ready to use and do not require more definition.

Data Structures
struct	udc_desc_t
	Structure for USB Device Configuration Descriptor. More...

Macros
#define	USB_DEVICE_EP_CTRL_SIZE 64
	Control endpoint size (Endpoint 0) More...

#define	USB_DEVICE_NB_INTERFACE (2*UDI_CDC_PORT_NB)
	Two interfaces for a CDC device. More...

#define	USB_VERSION USB_V2_1

Variables
COMPILER_WORD_ALIGNED UDC_DESC_STORAGE udc_desc_t	udc_desc_fs
	USB Device Configuration Descriptor filled for full and high speed. More...

COMPILER_WORD_ALIGNED UDC_DESC_STORAGE usb_dev_desc_t	udc_device_desc
	USB Device Descriptor. More...

COMPILER_WORD_ALIGNED UDC_DESC_STORAGE usb_dev_lpm_desc_t	udc_device_lpm
	USB Device Qualifier Descriptor. More...

UDC structures which content all USB Device definitions
UDC_DESC_STORAGE udi_api_t *	udi_apis [USB_DEVICE_NB_INTERFACE]
	Associate an UDI for each USB interface. More...

UDC_DESC_STORAGE udc_config_speed_t	udc_config_fs [1]
	Add UDI with USB Descriptors FS & HS. More...

UDC_DESC_STORAGE udc_config_t	udc_config
	Add all information about USB Device in global structure for UDC. More...

Default endpoint configuration
The USBB, UDP, UDPHS and UOTGHS interfaces can support up to 2 CDC interfaces.
#define	UDI_CDC_DATA_EP_IN_0 (1 \| USB_EP_DIR_IN)

#define	UDI_CDC_DATA_EP_OUT_0 (2 \| USB_EP_DIR_OUT)

#define	UDI_CDC_COMM_EP_0 (3 \| USB_EP_DIR_IN)

#define	UDI_CDC_DATA_EP_IN_1 (4 \| USB_EP_DIR_IN)

#define	UDI_CDC_DATA_EP_OUT_1 (5 \| USB_EP_DIR_OUT)

#define	UDI_CDC_COMM_EP_1 (6 \| USB_EP_DIR_IN)

#define	USB_DEVICE_MAX_EP (3*UDI_CDC_PORT_NB)
	3 endpoints used per CDC interface More...

Default Interface numbers
#define	UDI_CDC_COMM_IFACE_NUMBER_0 0

#define	UDI_CDC_DATA_IFACE_NUMBER_0 1

#define	UDI_CDC_COMM_IFACE_NUMBER_1 2

#define	UDI_CDC_DATA_IFACE_NUMBER_1 3

#define	UDI_CDC_COMM_IFACE_NUMBER_2 4

#define	UDI_CDC_DATA_IFACE_NUMBER_2 5

#define	UDI_CDC_COMM_IFACE_NUMBER_3 6

#define	UDI_CDC_DATA_IFACE_NUMBER_3 7

#define	UDI_CDC_COMM_IFACE_NUMBER_4 8

#define	UDI_CDC_DATA_IFACE_NUMBER_4 9

#define	UDI_CDC_COMM_IFACE_NUMBER_5 10

#define	UDI_CDC_DATA_IFACE_NUMBER_5 11

#define	UDI_CDC_COMM_IFACE_NUMBER_6 12

#define	UDI_CDC_DATA_IFACE_NUMBER_6 13

#define UDI_CDC_COMM_EP_0 (3 | USB_EP_DIR_IN)

Referenced by udi_cdc_ctrl_state_change().

#define UDI_CDC_COMM_EP_1 (6 | USB_EP_DIR_IN)

#define UDI_CDC_COMM_IFACE_NUMBER_0 0

Referenced by udi_cdc_comm_enable().

#define UDI_CDC_COMM_IFACE_NUMBER_1 2

#define UDI_CDC_COMM_IFACE_NUMBER_2 4

#define UDI_CDC_COMM_IFACE_NUMBER_3 6

#define UDI_CDC_COMM_IFACE_NUMBER_4 8

#define UDI_CDC_COMM_IFACE_NUMBER_5 10

#define UDI_CDC_COMM_IFACE_NUMBER_6 12

#define UDI_CDC_DATA_EP_IN_0 (1 | USB_EP_DIR_IN)

Referenced by udi_cdc_tx_send().

#define UDI_CDC_DATA_EP_IN_1 (4 | USB_EP_DIR_IN)

#define UDI_CDC_DATA_EP_OUT_0 (2 | USB_EP_DIR_OUT)

Referenced by udi_cdc_rx_start().

#define UDI_CDC_DATA_EP_OUT_1 (5 | USB_EP_DIR_OUT)

#define UDI_CDC_DATA_IFACE_NUMBER_0 1

#define UDI_CDC_DATA_IFACE_NUMBER_1 3

#define UDI_CDC_DATA_IFACE_NUMBER_2 5

#define UDI_CDC_DATA_IFACE_NUMBER_3 7

#define UDI_CDC_DATA_IFACE_NUMBER_4 9

#define UDI_CDC_DATA_IFACE_NUMBER_5 11

#define UDI_CDC_DATA_IFACE_NUMBER_6 13

#define USB_DEVICE_EP_CTRL_SIZE 64

Control endpoint size (Endpoint 0)

Referenced by _usb_ep0_on_setup(), udd_ctrl_ep_enable(), udd_ctrl_in_sent(), and udd_ctrl_out_received().

#define USB_DEVICE_MAX_EP (3*UDI_CDC_PORT_NB)

3 endpoints used per CDC interface

#define USB_DEVICE_NB_INTERFACE (2*UDI_CDC_PORT_NB)

Two interfaces for a CDC device.

#define USB_VERSION USB_V2_1

UDC_DESC_STORAGE udc_config_t udc_config

Initial value:

= {
    .confdev_lsfs = &udc_device_desc,
    .conf_lsfs = udc_config_fs,
    .conf_bos = &udc_device_lpm.bos,
}

Add all information about USB Device in global structure for UDC.

Global variables of USB Device Descriptor and UDI links.

Referenced by udc_req_std_dev_get_descriptor(), and udc_req_std_dev_set_configuration().

UDC_DESC_STORAGE udc_config_speed_t udc_config_fs[1]

Initial value:

= { {
    .desc          = (usb_conf_desc_t UDC_DESC_STORAGE*)&udc_desc_fs,
    .udi_apis = udi_apis,
}}

Add UDI with USB Descriptors FS & HS.

COMPILER_WORD_ALIGNED UDC_DESC_STORAGE udc_desc_t udc_desc_fs

Initial value:

= {
    .conf.bLength              = sizeof(usb_conf_desc_t),
    .conf.bDescriptorType      = USB_DT_CONFIGURATION,
    .conf.wTotalLength         = LE16(sizeof(udc_desc_t)),
    .conf.bNumInterfaces       = USB_DEVICE_NB_INTERFACE,
    .conf.bConfigurationValue  = 1,
    .conf.iConfiguration       = 0,
    .conf.bmAttributes         = USB_CONFIG_ATTR_MUST_SET | USB_DEVICE_ATTR,
    .conf.bMaxPower            = USB_CONFIG_MAX_POWER(USB_DEVICE_POWER),
    .udi_cdc_comm_0            = UDI_CDC_COMM_DESC_0,
    .udi_cdc_data_0            = UDI_CDC_DATA_DESC_0_FS,
}

USB Device Configuration Descriptor filled for full and high speed.

COMPILER_WORD_ALIGNED UDC_DESC_STORAGE usb_dev_desc_t udc_device_desc

USB Device Descriptor.

COMPILER_WORD_ALIGNED UDC_DESC_STORAGE usb_dev_lpm_desc_t udc_device_lpm

Initial value:

= {
    .bos.bLength               = sizeof(usb_dev_bos_desc_t),
    .bos.bDescriptorType       = USB_DT_BOS,
    .bos.wTotalLength          = LE16(sizeof(usb_dev_bos_desc_t) + sizeof(usb_dev_capa_ext_desc_t)),
    .bos.bNumDeviceCaps        = 1,
    .capa_ext.bLength          = sizeof(usb_dev_capa_ext_desc_t),
    .capa_ext.bDescriptorType  = USB_DT_DEVICE_CAPABILITY,
    .capa_ext.bDevCapabilityType = USB_DC_USB20_EXTENSION,
    .capa_ext.bmAttributes     = USB_DC_EXT_LPM,
}

USB Device Qualifier Descriptor.

UDC_DESC_STORAGE udi_api_t* udi_apis[USB_DEVICE_NB_INTERFACE]

Initial value:

= {
#define UDI_CDC_API(index, unused) 
}

Associate an UDI for each USB interface.

Microchip® Advanced Software Framework

Data Structures

Macros

Variables

UDC structures which content all USB Device definitions

Default endpoint configuration

Default Interface numbers