Definitions for USB protocol messages. More...

Detailed Description

Definitions for USB protocol messages.

Definition in file descriptor.h.

#include <stdint.h>
#include <stdbool.h>

Include dependency graph for descriptor.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	usb_descriptor_device_t
	USB device descriptor (USB 2.0 spec table 9-8) More...

struct	usb_descriptor_configuration_t
	USB configuration descriptor (USB 2.0 spec table 9-10) More...

struct	usb_descriptor_interface_t
	USB interface descriptor (USB 2.0 spec table 9-12) More...

struct	usb_descriptor_endpoint_t
	USB endpoint descriptor (USB 2.0 spec table 9-13) More...

struct	usb_descriptor_string_t
	USB string descriptor (USB 2.0 spec table 9-16) More...

struct	usb_descriptor_interface_association_t
	USB interface association descriptor (Interface Association Descriptors table 9-Z) More...

struct	usb_setup_t
	USB setup packet (USB 2.0 spec table 9-2) More...

Macros
#define	USB_ENDPOINT_DESCRIPTOR_INTERVAL_ISOCHRONOUS 1
	USB isochronous endpoint interval.

Functions
static bool	usb_setup_is_read (usb_setup_t *pkt)
	getter for setup packet direction

USB standard device request codes (USB 2.0 spec table 9-4)
#define	USB_SETUP_REQ_GET_STATUS 0x00
	Status request

#define	USB_SETUP_REQ_CLEAR_FEATURE 0x01
	Clear feature

#define	USB_SETUP_REQ_SET_FEATURE 0x03
	Set feature

#define	USB_SETUP_REQ_SET_ADDRESS 0x05
	Set address

#define	USB_SETUP_REQ_GET_DESCRIPTOR 0x06
	Get descriptor

#define	USB_SETUP_REQ_SET_DESCRIPTOR 0x07
	Set descriptor

#define	USB_SETUP_REQ_GET_CONFIGURATION 0x08
	Get configuration

#define	USB_SETUP_REQ_SET_CONFIGURATION 0x09
	Set configuration

#define	USB_SETUP_REQ_GET_INTERFACE 0x0a
	Get interface

#define	USB_SETUP_REQ_SET_INTERFACE 0x0b
	Set interface

#define	USB_SETUP_REQ_SYNCH_FRAME 0x0c
	Synch frame

USB descriptor types (USB 2.0 spec table 9-5)
#define	USB_TYPE_DESCRIPTOR_DEVICE 0x01
	Device descriptor

#define	USB_TYPE_DESCRIPTOR_CONFIGURATION 0x02
	Configuration Descriptor

#define	USB_TYPE_DESCRIPTOR_STRING 0x03
	String descriptor

#define	USB_TYPE_DESCRIPTOR_INTERFACE 0x04
	Interface descriptor

#define	USB_TYPE_DESCRIPTOR_ENDPOINT 0x05
	Endpoint descriptor

#define	USB_TYPE_DESCRIPTOR_DEV_QUALIFIER 0x06
	Device qualifier

#define	USB_TYPE_DESCRIPTOR_SPEED_CONFIG 0x07
	Other speed configuration.

#define	USB_TYPE_DESCRIPTOR_IFACE_POWER 0x08
	Interface power

#define	USB_TYPE_DESCRIPTOR_INTERFACE_ASSOC 0x0b
	Interface association

USB standard feature selectors
#define	USB_FEATURE_ENDPOINT_HALT 0x00
	Endpoint halt

#define	USB_FEATURE_DEVICE_REMOTE_WAKEUP 0x01
	Device remote wakeup.

#define	USB_FEATURE_TEST_MODE 0x02
	Test mode feature

USB configuration attributes

#define	USB_CONF_ATTR_RESERVED 0x80
	Reserved bit (always 1)

#define	USB_CONF_ATTR_SELF_POWERED 0x40
	Self powered device flag

#define	USB_CONF_ATTR_REM_WAKEUP 0x20
	Remote wake-up flag

USB setup packet requests types
#define	USB_SETUP_REQUEST_DEVICE2HOST 0x80
	Request direction From device to host if the bit is set

#define	USB_SETUP_REQUEST_RECIPIENT_MASK 0x1f
	Recipient mask

#define	USB_SETUP_REQUEST_RECIPIENT_DEVICE 0x00
	Device request

#define	USB_SETUP_REQUEST_RECIPIENT_INTERFACE 0x01
	Interface request

#define	USB_SETUP_REQUEST_RECIPIENT_ENDPOINT 0x02
	Endpoint request

#define	USB_SETUP_REQUEST_RECIPIENT_OTHER 0x03
	Other type request

#define	USB_SETUP_REQUEST_TYPE_MASK 0x60
	Mask to select the type.

#define	USB_SETUP_REQUEST_TYPE_STANDARD 0x00
	Standard request

#define	USB_SETUP_REQUEST_TYPE_CLASS 0x20
	Class request

#define	USB_SETUP_REQUEST_TYPE_VENDOR 0x40
	Vendor specific request.

Data Structures