USB Common
USB Stacks

Description

Common parts for both host and device USB stacks.

Data Structures

struct USB_Setup_TypeDef
USB Setup request package.
struct USB_DeviceDescriptor_TypeDef
USB Device Descriptor.
struct USB_ConfigurationDescriptor_TypeDef
USB Configuration Descriptor.
struct USB_InterfaceDescriptor_TypeDef
USB Interface Descriptor.
struct USB_EndpointDescriptor_TypeDef
USB Endpoint Descriptor.
struct USB_StringDescriptor_TypeDef
USB String Descriptor.

Functions

int USB_PUTCHAR (char c)
Transmit a single char on the debug serial port.
void USB_PUTS (const char *p)
Transmit a zero terminated string on the debug serial port.
int USB_PRINTF (const char *format,...)
Transmit "printf" formated data on the debug serial port.
char * USB_GetErrorMsgString (int error)
Return an error message string for a given error code.
void USB_PrintErrorMsgString (char *pre, int error)
Format and print a text string given an error code, prepends an optional user supplied leader string.
void USBTIMER_DelayMs (uint32_t msec)
Active wait millisecond delay function.
void USBTIMER_DelayUs (uint32_t usec)
Active wait microsecond delay function.
void USBTIMER_Init (void)
Activate the hardware timer used to pace the 1 millisecond timer system.
void USBTIMER_Start (uint32_t id, uint32_t timeout, USBTIMER_Callback_TypeDef callback)
Start a timer.
void USBTIMER_Stop (uint32_t id)
Stop a timer.

Macros

#define SILABS_USB_VID 0x10C4
Silicon Labs Vendor ID, supplied by USB-IF.
#define USB_SETUP_DIR_OUT 0
Setup request data stage OUT direction value.
#define USB_SETUP_DIR_IN 1
Setup request data stage IN direction value.
#define USB_SETUP_DIR_MASK 0x80
Setup request data stage direction mask.
#define USB_SETUP_DIR_D2H 0x80
Setup request data stage IN direction mask.
#define USB_SETUP_DIR_H2D 0x00
Setup request data stage OUT direction mask.
#define USB_SETUP_TYPE_STANDARD 0
Standard setup request value.
#define USB_SETUP_TYPE_CLASS 1
Class setup request value.
#define USB_SETUP_TYPE_VENDOR 2
Vendor setup request value.
#define USB_SETUP_TYPE_STANDARD_MASK 0x00
Standard setup request mask.
#define USB_SETUP_TYPE_CLASS_MASK 0x20
Class setup request mask.
#define USB_SETUP_TYPE_VENDOR_MASK 0x40
Vendor setup request mask.
#define USB_SETUP_RECIPIENT_DEVICE 0
Setup request device recipient value.
#define USB_SETUP_RECIPIENT_INTERFACE 1
Setup request interface recipient value.
#define USB_SETUP_RECIPIENT_ENDPOINT 2
Setup request endpoint recipient value.
#define USB_SETUP_RECIPIENT_OTHER 3
Setup request other recipient value.
#define GET_STATUS 0
Standard setup request GET_STATUS.
#define CLEAR_FEATURE 1
Standard setup request CLEAR_FEATURE.
#define SET_FEATURE 3
Standard setup request SET_FEATURE.
#define SET_ADDRESS 5
Standard setup request SET_ADDRESS.
#define GET_DESCRIPTOR 6
Standard setup request GET_DESCRIPTOR.
#define SET_DESCRIPTOR 7
Standard setup request SET_DESCRIPTOR.
#define GET_CONFIGURATION 8
Standard setup request GET_CONFIGURATION.
#define SET_CONFIGURATION 9
Standard setup request SET_CONFIGURATION.
#define GET_INTERFACE 10
Standard setup request GET_INTERFACE.
#define SET_INTERFACE 11
Standard setup request SET_INTERFACE.
#define SYNCH_FRAME 12
Standard setup request SYNCH_FRAME.
#define USB_HID_GET_REPORT 0x01
HID class setup request GET_REPORT.
#define USB_HID_GET_IDLE 0x02
HID class setup request GET_IDLE.
#define USB_HID_SET_REPORT 0x09
HID class setup request SET_REPORT.
#define USB_HID_SET_IDLE 0x0A
HID class setup request SET_IDLE.
#define USB_HID_SET_PROTOCOL 0x0B
HID class setup request SET_PROTOCOL.
#define USB_CDC_SETLINECODING 0x20
CDC class setup request SET_LINE_CODING.
#define USB_CDC_GETLINECODING 0x21
CDC class setup request GET_LINE_CODING.
#define USB_CDC_SETCTRLLINESTATE 0x22
CDC class setup request SET_CONTROL_LINE_STATE.
#define USB_MSD_BOTRESET 0xFF
MSD class setup request Bulk only transfer reset.
#define USB_MSD_GETMAXLUN 0xFE
MSD class setup request Get Max LUN.
#define USB_AUDIO_GET_CUR 0x81
Audio class setup request GET_CUR.
#define USB_AUDIO_GET_CUR 0x81
Audio class setup request GET_CUR.
#define USB_AUDIO_SET_CUR 0x01
Audio class setup request SET_CUR.
#define USB_AUDIO_SET_MIN 0x02
Audio class setup request SET_MIN.
#define USB_AUDIO_GET_MIN 0x82
Audio class setup request GET_MIN.
#define USB_AUDIO_SET_MAX 0x03
Audio class setup request SET_MAX.
#define USB_AUDIO_GET_MAX 0x83
Audio class setup request GET_MAX.
#define USB_AUDIO_SET_RES 0x04
Audio class setup request SET_RES.
#define USB_AUDIO_GET_RES 0x84
Audio class setup request GET_RES.
#define USB_AUDIO_SET_MEM 0x05
Audio class setup request SET_MEM.
#define USB_AUDIO_GET_MEM 0x85
Audio class setup request GET_MEM.
#define USB_AUDIO_GET_STAT 0xFF
Audio class setup request GET_STAT.
#define USB_DEVICE_DESCRIPTOR 1
DEVICE descriptor value.
#define USB_CONFIG_DESCRIPTOR 2
CONFIGURATION descriptor value.
#define USB_STRING_DESCRIPTOR 3
STRING descriptor value.
#define USB_MAX_STRING_DESCRIPTOR_CHARS 126
Maximum STRING descriptor bString length.
#define USB_INTERFACE_DESCRIPTOR 4
INTERFACE descriptor value.
#define USB_ENDPOINT_DESCRIPTOR 5
ENDPOINT descriptor value.
#define USB_DEVICE_QUALIFIER_DESCRIPTOR 6
DEVICE_QUALIFIER descriptor value.
#define USB_OTHER_SPEED_CONFIG_DESCRIPTOR 7
OTHER_SPEED_CONFIGURATION descriptor value.
#define USB_INTERFACE_POWER_DESCRIPTOR 8
INTERFACE_POWER descriptor value.
#define USB_INTERFACE_ASSOCIATION_DESCRIPTOR 11
INTERFACE_ASSOCIATION descriptor value.
#define USB_HID_DESCRIPTOR 0x21
HID descriptor value.
#define USB_SMARTCARD_DESCRIPTOR 0x21
Smartcard usb-ccid-specific Descriptor Type.
#define USB_HID_REPORT_DESCRIPTOR 0x22
HID REPORT descriptor value.
#define USB_CS_INTERFACE_DESCRIPTOR 0x24
Audio Class-specific interface Descriptor Type.
#define USB_CS_ENDPOINT_DESCRIPTOR 0x25
Audio Class-specific endpoint Descriptor Type.
#define USB_HUB_DESCRIPTOR 0x29
HUB descriptor value.
#define USB_CA_HEADER_DESCRIPTOR 1
Audio Class-Specific AC Interface Header descriptor.
#define USB_CA_INPUT_TERMINAL_DESCRIPTOR 2
Audio Class-Specific AC Interface Input Terminal desc.
#define USB_CA_OUTPUT_TERMINAL_DESCRIPTOR 3
Audio Class-Specific AC Interface Output Terminal desc.
#define USB_CA_MIXER_UNIT_DESCRIPTOR 4
Audio Class-Specific AC Interface Mixer descriptor.
#define USB_CA_SELECTOR_UNIT_DESCRIPTOR 5
Audio Class-Specific AC Interface Selector desc.
#define USB_CA_FEATURE_UNIT_DESCRIPTOR 6
Audio Class-Specific AC Interface Feature desc.
#define USB_CA_PROCESSING_UNIT_DESCRIPTOR 7
Audio Class-Specific AC Interface Processing desc.
#define USB_CA_EXTENSION_UNIT_DESCRIPTOR 8
Audio Class-Specific AC Interface Extension desc.
#define USB_CA_EP_GENERAL_DESCRIPTOR 1
Audio Class-Specific general descriptor subtype code.
#define USB_CA_AS_GENERAL_DESCRIPTOR 1
Audio Class-Specific AS Interface General descriptor.
#define USB_CA_FORMAT_TYPE_DESCRIPTOR 2
Audio Class-Specific AS Interface Format Type desc.
#define USB_DEVICE_DESCSIZE 18
Device descriptor size.
#define USB_CONFIG_DESCSIZE 9
Configuration descriptor size.
#define USB_INTERFACE_DESCSIZE 9
Interface descriptor size.
#define USB_ENDPOINT_DESCSIZE 7
Endpoint descriptor size.
#define USB_DEVICE_QUALIFIER_DESCSIZE 10
Device qualifier descriptor size.
#define USB_OTHER_SPEED_CONFIG_DESCSIZE 9
Device other speed configuration descriptor size.
#define USB_INTERFACE_ASSOCIATION_DESCSIZE 8
INTERFACE_ASSOCIATION descriptor size.
#define USB_HID_DESCSIZE 9
HID descriptor size.
#define USB_SMARTCARD_DESCSIZE 54
CCID descriptor size.
#define USB_CDC_HEADER_FND_DESCSIZE 5
CDC Header functional descriptor size.
#define USB_CDC_CALLMNG_FND_DESCSIZE 5
CDC Call Management functional descriptor size.
#define USB_CDC_ACM_FND_DESCSIZE 4
CDC Abstract Control Management functional descriptor size.
#define USB_CA_INPUT_TERMINAL_DESCSIZE 12
Audio Input Terminal descriptor size.
#define USB_CA_OUTPUT_TERMINAL_DESCSIZE 9
Audio Output Terminal descriptor size.
#define USB_CA_EP_GENERAL_DESCSIZE 7
Audio Class-Specific general descriptor subtype size.
#define USB_CA_AS_GENERAL_DESCSIZE 7
Audio Class-Specific AS Interface General desc size.
#define USB_CA_STD_AS_ENDPOINT_DESCSZIE 9
Audio-class standard audio stream descriptor size.
#define USB_LS_CTRL_EP_MAXSIZE 8
The max size of low speed control endpoints.
#define USB_LS_INTR_EP_MAXSIZE 8
The max size of low speed interrupt endpoints.
#define USB_FS_CTRL_EP_MAXSIZE 64
The max size of full speed control endpoints.
#define USB_FS_INTR_EP_MAXSIZE 64
The max size of full speed interrupt endpoints.
#define USB_FS_BULK_EP_MAXSIZE 64
The max size of full speed bulk endpoints.
#define USB_FS_ISOC_EP_MAXSIZE 1023
The max size of full speed isochronous endpoints.
#define USB_EPTYPE_CTRL 0
Endpoint type control.
#define USB_EPTYPE_ISOC 1
Endpoint type isochron.
#define USB_EPTYPE_BULK 2
Endpoint type bulk.
#define USB_EPTYPE_INTR 3
Endpoint type interrupt.
#define USB_EPSYNC_NO (0 << 2)
Endpoint synchronization type, none.
#define USB_EPSYNC_ASYNC (1 << 2)
Endpoint synchronization type, asynchronous.
#define USB_EPSYNC_ADAPTIVE (2 << 2)
Endpoint synchronization type, adaptive.
#define USB_EPSYNC_SYNC (3 << 2)
Endpoint synchronization type, synchronous.
#define USB_EP_DIR_IN 0x80
Endpoint direction mask.
#define USB_SETUP_PKT_SIZE 8
Setup request packet size.
#define USB_EPNUM_MASK 0x0F
Endpoint number mask.
#define USB_LANGID_ENUS 0x0409
English-United States language id.
#define USB_MAX_DEVICE_ADDRESS 127
Maximum allowable device address.
#define CONFIG_DESC_BM_REMOTEWAKEUP 0x20
Configuration descriptor attribute macro.
#define CONFIG_DESC_BM_SELFPOWERED 0x40
Configuration descriptor attribute macro.
#define CONFIG_DESC_BM_RESERVED_D7 0x80
Configuration descriptor attribute macro.
#define CONFIG_DESC_BM_TRANSFERTYPE 0x03
Configuration descriptor transfer type bitmask.
#define CONFIG_DESC_MAXPOWER_mA (x)   (((x) + 1) / 2)
Configuration descriptor power macro.
#define DEVICE_IS_SELFPOWERED 0x0001
Standard request GET_STATUS bitmask.
#define REMOTE_WAKEUP_ENABLED 0x0002
Standard request GET_STATUS bitmask.
#define USB_FEATURE_ENDPOINT_HALT 0
Standard request CLEAR/SET_FEATURE bitmask.
#define USB_FEATURE_DEVICE_REMOTE_WAKEUP 1
Standard request CLEAR/SET_FEATURE bitmask.
#define HUB_FEATURE_PORT_RESET 4
HUB class request CLEAR/SET_PORT_FEATURE feature selector.
#define HUB_FEATURE_PORT_POWER 8
HUB class request CLEAR/SET_PORT_FEATURE feature selector.
#define HUB_FEATURE_C_PORT_CONNECTION 16
HUB class request CLEAR/SET_PORT_FEATURE feature selector.
#define HUB_FEATURE_C_PORT_RESET 20
HUB class request CLEAR/SET_PORT_FEATURE feature selector.
#define HUB_FEATURE_PORT_INDICATOR 22
HUB class request CLEAR/SET_PORT_FEATURE feature selector.
#define USB_CLASS_CDC 2
CDC device/interface class code.
#define USB_CLASS_CDC_DATA 0x0A
CDC Data interface class code.
#define USB_CLASS_CDC_ACM 2
CDC Abstract Control Model interface subclass code.
#define USB_CLASS_CDC_HFN 0
CDC class Header Functional Descriptor subtype.
#define USB_CLASS_CDC_CMNGFN 1
CDC class Call Management Functional Descriptor subtype.
#define USB_CLASS_CDC_ACMFN 2
CDC class Abstract Control Management Functional Descriptor subtype.
#define USB_CLASS_CDC_UNIONFN 6
CDC class Union Functional Descriptor subtype.
#define USB_CLASS_HID 3
HID device/interface class code.
#define USB_CLASS_HID_KEYBOARD 1
HID keyboard interface protocol code.
#define USB_CLASS_HID_MOUSE 2
HID mouse interface protocol code.
#define USB_CLASS_HUB 9
HUB device/interface class code.
#define USB_CLASS_MSD 8
MSD device/interface class code.
#define USB_CLASS_MSD_BOT_TRANSPORT 0x50
MSD Bulk Only Transport protocol.
#define USB_CLASS_MSD_SCSI_CMDSET 6
MSD Subclass SCSI transparent command set.
#define USB_CLASS_MSD_CSW_CMDPASSED 0
MSD BOT Command status wrapper command passed code.
#define USB_CLASS_MSD_CSW_CMDFAILED 1
MSD BOT Command status wrapper command failed code.
#define USB_CLASS_MSD_CSW_PHASEERROR 2
MSD BOT Command status wrapper cmd phase error code.
#define USB_CLASS_AUDIO 1
Audio interface class code.
#define USB_CLASS_AUDIO_CONTROL 1
Audio subclass code for control interface.
#define USB_CLASS_AUDIO_STREAMING 2
Audio subclass code for streaming interface.
#define USB_CLASS_AUDIO_MIDISTREAMING 3
Audio subclass code for midi streaming interface.
#define USB_CLASS_MISCELLANEOUS 0xEF
MISCELLANEOUS device class code.
#define USB_CLASS_MISC_COMMON_SUBCLASS 2
MISCELLANEOUS Common sub class code.
#define USB_CLASS_MISC_IAD_PROTOCOL 1
MISCELLANEOUS Interface Association Descriptor protocol code.
#define PORT_FULL_SPEED 1
Full speed return value for USBH_GetPortSpeed() .
#define PORT_LOW_SPEED 2
Low speed return value for USBH_GetPortSpeed() .
#define USB_DPLL_SRC_LFXO 1
Use LFXO as DPLL clock source.
#define USB_DPLL_SRC_HFXO 2
Use HFXO as DPLL clock source.
#define STATIC_CONST_STRING_DESC (_name, ...)
Macro for creating USB compliant UTF-16LE UNICODE string descriptors.
#define STATIC_CONST_STRING_DESC_LANGID (_name, x, y)
Macro for creating USB compliant language string descriptors.
#define UBUF (x, y)   SL_ALIGN(4) uint8_t x[((y) + 3) & ~3] SL_ATTRIBUTE_ALIGN(4)
Macro for creating WORD (4 byte) aligned uint8_t array with size which is a multiple of WORD size.
#define STATIC_UBUF (x, y)   SL_ALIGN(4) static uint8_t x[((y) + 3) & ~3] SL_ATTRIBUTE_ALIGN(4)
Macro for creating WORD (4 byte) aligned static uint8_t arrays with size which is a multiple of WORD size.

Typedefs

typedef unsigned short char16_t
Data type used for UTF-16LE formatted USB string descriptors.
typedef int(* USB_XferCompleteCb_TypeDef ) ( USB_Status_TypeDef status, uint32_t xferred, uint32_t remaining)
USB transfer callback function.
typedef void(* USBTIMER_Callback_TypeDef ) (void)
USBTIMER callback function.

Enumerations

enum USB_Status_TypeDef {
USB_STATUS_OK = 0,
USB_STATUS_REQ_ERR = -1,
USB_STATUS_EP_BUSY = -2,
USB_STATUS_REQ_UNHANDLED = -3,
USB_STATUS_ILLEGAL = -4,
USB_STATUS_EP_STALLED = -5,
USB_STATUS_EP_ABORTED = -6,
USB_STATUS_EP_ERROR = -7,
USB_STATUS_EP_NAK = -8,
USB_STATUS_DEVICE_UNCONFIGURED = -9,
USB_STATUS_DEVICE_SUSPENDED = -10,
USB_STATUS_DEVICE_RESET = -11,
USB_STATUS_TIMEOUT = -12,
USB_STATUS_DEVICE_REMOVED = -13,
USB_STATUS_HC_BUSY = -14,
USB_STATUS_DEVICE_MALFUNCTION = -15,
USB_STATUS_PORT_OVERCURRENT = -16
}
USB transfer status enumerator.

Function Documentation

◆ USB_PUTCHAR()

int USB_PUTCHAR ( char c )

Transmit a single char on the debug serial port.

Note
This function is enabled with #define DEBUG_USB_API when configuring the protocol stack in "usbconfig.h". This is convenient when debugging code, no need to remove use of this function when debugging has completed.
Parameters
[in] c Char to transmit.
Returns
The char transmitted.

◆ USB_PUTS()

void USB_PUTS ( const char * p )

Transmit a zero terminated string on the debug serial port.

Note
This function is enabled with #define DEBUG_USB_API when configuring the protocol stack in "usbconfig.h". This is convenient when debugging code, no need to remove use of this function when debugging has completed.
Parameters
[in] p Pointer to string to transmit.

◆ USB_PRINTF()

int USB_PRINTF ( const char * format,
...
)

Transmit "printf" formated data on the debug serial port.

Note
This function is enabled with #define USB_USE_PRINTF when configuring the protocol stack in "usbconfig.h". This is convenient when debugging code, no need to remove use of this function when debugging has completed.
Parameters
[in] format Format string (as in printf). No floating point format support.
Returns
Number of chars transmitted.

◆ USB_GetErrorMsgString()

char* USB_GetErrorMsgString ( int error )

Return an error message string for a given error code.

Parameters
[in] error Error code, see USB_Status_TypeDef .
Returns
Error message string pointer.

◆ USB_PrintErrorMsgString()

void USB_PrintErrorMsgString ( char * pre,
int error
)

Format and print a text string given an error code, prepends an optional user supplied leader string.

Parameters
[in] pre Optional leader string to prepend to error message string.
[in] error Error code, see USB_Status_TypeDef .

◆ USBTIMER_DelayMs()

void USBTIMER_DelayMs ( uint32_t msec )

Active wait millisecond delay function.

Can also be used inside interrupt handlers.

Parameters
[in] msec Number of milliseconds to wait.

◆ USBTIMER_DelayUs()

void USBTIMER_DelayUs ( uint32_t usec )

Active wait microsecond delay function.

Can also be used inside interrupt handlers.

Parameters
[in] usec Number of microseconds to wait.

◆ USBTIMER_Init()

void USBTIMER_Init ( void )

Activate the hardware timer used to pace the 1 millisecond timer system.

Call this function whenever the HFPERCLK frequency is changed. This function is initially called by HOST and DEVICE stack xxxx_Init() functions.

◆ USBTIMER_Start()

void USBTIMER_Start ( uint32_t id,
uint32_t timeout,
USBTIMER_Callback_TypeDef callback
)

Start a timer.

If the timer is already running, it will be restarted with new timeout.

Parameters
[in] id Timer id (0..).
[in] timeout Number of milliseconds before timer will elapse.
[in] callback Function to be called on timer elapse, ref. USBTIMER_Callback_TypeDef .

◆ USBTIMER_Stop()

void USBTIMER_Stop ( uint32_t id )

Stop a timer.

Parameters
[in] id Timer id (0..).

Macro Definition Documentation

◆ SILABS_USB_VID

#define SILABS_USB_VID   0x10C4

Silicon Labs Vendor ID, supplied by USB-IF.


◆ USB_SETUP_DIR_OUT

#define USB_SETUP_DIR_OUT   0

Setup request data stage OUT direction value.


◆ USB_SETUP_DIR_IN

#define USB_SETUP_DIR_IN   1

Setup request data stage IN direction value.


◆ USB_SETUP_DIR_MASK

#define USB_SETUP_DIR_MASK   0x80

Setup request data stage direction mask.


◆ USB_SETUP_DIR_D2H

#define USB_SETUP_DIR_D2H   0x80

Setup request data stage IN direction mask.


◆ USB_SETUP_DIR_H2D

#define USB_SETUP_DIR_H2D   0x00

Setup request data stage OUT direction mask.


◆ USB_SETUP_TYPE_STANDARD

#define USB_SETUP_TYPE_STANDARD   0

Standard setup request value.


◆ USB_SETUP_TYPE_CLASS

#define USB_SETUP_TYPE_CLASS   1

Class setup request value.


◆ USB_SETUP_TYPE_VENDOR

#define USB_SETUP_TYPE_VENDOR   2

Vendor setup request value.


◆ USB_SETUP_TYPE_STANDARD_MASK

#define USB_SETUP_TYPE_STANDARD_MASK   0x00

Standard setup request mask.


◆ USB_SETUP_TYPE_CLASS_MASK

#define USB_SETUP_TYPE_CLASS_MASK   0x20

Class setup request mask.


◆ USB_SETUP_TYPE_VENDOR_MASK

#define USB_SETUP_TYPE_VENDOR_MASK   0x40

Vendor setup request mask.


◆ USB_SETUP_RECIPIENT_DEVICE

#define USB_SETUP_RECIPIENT_DEVICE   0

Setup request device recipient value.


◆ USB_SETUP_RECIPIENT_INTERFACE

#define USB_SETUP_RECIPIENT_INTERFACE   1

Setup request interface recipient value.


◆ USB_SETUP_RECIPIENT_ENDPOINT

#define USB_SETUP_RECIPIENT_ENDPOINT   2

Setup request endpoint recipient value.


◆ USB_SETUP_RECIPIENT_OTHER

#define USB_SETUP_RECIPIENT_OTHER   3

Setup request other recipient value.


◆ GET_STATUS

#define GET_STATUS   0

Standard setup request GET_STATUS.


◆ CLEAR_FEATURE

#define CLEAR_FEATURE   1

Standard setup request CLEAR_FEATURE.


◆ SET_FEATURE

#define SET_FEATURE   3

Standard setup request SET_FEATURE.


◆ SET_ADDRESS

#define SET_ADDRESS   5

Standard setup request SET_ADDRESS.


◆ GET_DESCRIPTOR

#define GET_DESCRIPTOR   6

Standard setup request GET_DESCRIPTOR.


◆ SET_DESCRIPTOR

#define SET_DESCRIPTOR   7

Standard setup request SET_DESCRIPTOR.


◆ GET_CONFIGURATION

#define GET_CONFIGURATION   8

Standard setup request GET_CONFIGURATION.


◆ SET_CONFIGURATION

#define SET_CONFIGURATION   9

Standard setup request SET_CONFIGURATION.


◆ GET_INTERFACE

#define GET_INTERFACE   10

Standard setup request GET_INTERFACE.


◆ SET_INTERFACE

#define SET_INTERFACE   11

Standard setup request SET_INTERFACE.


◆ SYNCH_FRAME

#define SYNCH_FRAME   12

Standard setup request SYNCH_FRAME.


◆ USB_HID_GET_REPORT

#define USB_HID_GET_REPORT   0x01

HID class setup request GET_REPORT.


◆ USB_HID_GET_IDLE

#define USB_HID_GET_IDLE   0x02

HID class setup request GET_IDLE.


◆ USB_HID_SET_REPORT

#define USB_HID_SET_REPORT   0x09

HID class setup request SET_REPORT.


◆ USB_HID_SET_IDLE

#define USB_HID_SET_IDLE   0x0A

HID class setup request SET_IDLE.


◆ USB_HID_SET_PROTOCOL

#define USB_HID_SET_PROTOCOL   0x0B

HID class setup request SET_PROTOCOL.


◆ USB_CDC_SETLINECODING

#define USB_CDC_SETLINECODING   0x20

CDC class setup request SET_LINE_CODING.


◆ USB_CDC_GETLINECODING

#define USB_CDC_GETLINECODING   0x21

CDC class setup request GET_LINE_CODING.


◆ USB_CDC_SETCTRLLINESTATE

#define USB_CDC_SETCTRLLINESTATE   0x22

CDC class setup request SET_CONTROL_LINE_STATE.


◆ USB_MSD_BOTRESET

#define USB_MSD_BOTRESET   0xFF

MSD class setup request Bulk only transfer reset.

◆ USB_MSD_GETMAXLUN

#define USB_MSD_GETMAXLUN   0xFE

MSD class setup request Get Max LUN.


◆ USB_AUDIO_GET_CUR [1/2]

#define USB_AUDIO_GET_CUR   0x81

Audio class setup request GET_CUR.


◆ USB_AUDIO_GET_CUR [2/2]

#define USB_AUDIO_GET_CUR   0x81

Audio class setup request GET_CUR.


◆ USB_AUDIO_SET_CUR

#define USB_AUDIO_SET_CUR   0x01

Audio class setup request SET_CUR.


◆ USB_AUDIO_SET_MIN

#define USB_AUDIO_SET_MIN   0x02

Audio class setup request SET_MIN.


◆ USB_AUDIO_GET_MIN

#define USB_AUDIO_GET_MIN   0x82

Audio class setup request GET_MIN.


◆ USB_AUDIO_SET_MAX

#define USB_AUDIO_SET_MAX   0x03

Audio class setup request SET_MAX.


◆ USB_AUDIO_GET_MAX

#define USB_AUDIO_GET_MAX   0x83

Audio class setup request GET_MAX.


◆ USB_AUDIO_SET_RES

#define USB_AUDIO_SET_RES   0x04

Audio class setup request SET_RES.


◆ USB_AUDIO_GET_RES

#define USB_AUDIO_GET_RES   0x84

Audio class setup request GET_RES.


◆ USB_AUDIO_SET_MEM

#define USB_AUDIO_SET_MEM   0x05

Audio class setup request SET_MEM.


◆ USB_AUDIO_GET_MEM

#define USB_AUDIO_GET_MEM   0x85

Audio class setup request GET_MEM.


◆ USB_AUDIO_GET_STAT

#define USB_AUDIO_GET_STAT   0xFF

Audio class setup request GET_STAT.


◆ USB_DEVICE_DESCRIPTOR

#define USB_DEVICE_DESCRIPTOR   1

DEVICE descriptor value.


◆ USB_CONFIG_DESCRIPTOR

#define USB_CONFIG_DESCRIPTOR   2

CONFIGURATION descriptor value.


◆ USB_STRING_DESCRIPTOR

#define USB_STRING_DESCRIPTOR   3

STRING descriptor value.


◆ USB_MAX_STRING_DESCRIPTOR_CHARS

#define USB_MAX_STRING_DESCRIPTOR_CHARS   126

Maximum STRING descriptor bString length.


◆ USB_INTERFACE_DESCRIPTOR

#define USB_INTERFACE_DESCRIPTOR   4

INTERFACE descriptor value.


◆ USB_ENDPOINT_DESCRIPTOR

#define USB_ENDPOINT_DESCRIPTOR   5

ENDPOINT descriptor value.


◆ USB_DEVICE_QUALIFIER_DESCRIPTOR

#define USB_DEVICE_QUALIFIER_DESCRIPTOR   6

DEVICE_QUALIFIER descriptor value.


◆ USB_OTHER_SPEED_CONFIG_DESCRIPTOR

#define USB_OTHER_SPEED_CONFIG_DESCRIPTOR   7

OTHER_SPEED_CONFIGURATION descriptor value.


◆ USB_INTERFACE_POWER_DESCRIPTOR

#define USB_INTERFACE_POWER_DESCRIPTOR   8

INTERFACE_POWER descriptor value.


◆ USB_INTERFACE_ASSOCIATION_DESCRIPTOR

#define USB_INTERFACE_ASSOCIATION_DESCRIPTOR   11

INTERFACE_ASSOCIATION descriptor value.


◆ USB_HID_DESCRIPTOR

#define USB_HID_DESCRIPTOR   0x21

HID descriptor value.


◆ USB_SMARTCARD_DESCRIPTOR

#define USB_SMARTCARD_DESCRIPTOR   0x21

Smartcard usb-ccid-specific Descriptor Type.


◆ USB_HID_REPORT_DESCRIPTOR

#define USB_HID_REPORT_DESCRIPTOR   0x22

HID REPORT descriptor value.


◆ USB_CS_INTERFACE_DESCRIPTOR

#define USB_CS_INTERFACE_DESCRIPTOR   0x24

Audio Class-specific interface Descriptor Type.


◆ USB_CS_ENDPOINT_DESCRIPTOR

#define USB_CS_ENDPOINT_DESCRIPTOR   0x25

Audio Class-specific endpoint Descriptor Type.


◆ USB_HUB_DESCRIPTOR

#define USB_HUB_DESCRIPTOR   0x29

HUB descriptor value.


◆ USB_CA_HEADER_DESCRIPTOR

#define USB_CA_HEADER_DESCRIPTOR   1

Audio Class-Specific AC Interface Header descriptor.

◆ USB_CA_INPUT_TERMINAL_DESCRIPTOR

#define USB_CA_INPUT_TERMINAL_DESCRIPTOR   2

Audio Class-Specific AC Interface Input Terminal desc.

◆ USB_CA_OUTPUT_TERMINAL_DESCRIPTOR

#define USB_CA_OUTPUT_TERMINAL_DESCRIPTOR   3

Audio Class-Specific AC Interface Output Terminal desc.

◆ USB_CA_MIXER_UNIT_DESCRIPTOR

#define USB_CA_MIXER_UNIT_DESCRIPTOR   4

Audio Class-Specific AC Interface Mixer descriptor.

◆ USB_CA_SELECTOR_UNIT_DESCRIPTOR

#define USB_CA_SELECTOR_UNIT_DESCRIPTOR   5

Audio Class-Specific AC Interface Selector desc.


◆ USB_CA_FEATURE_UNIT_DESCRIPTOR

#define USB_CA_FEATURE_UNIT_DESCRIPTOR   6

Audio Class-Specific AC Interface Feature desc.


◆ USB_CA_PROCESSING_UNIT_DESCRIPTOR

#define USB_CA_PROCESSING_UNIT_DESCRIPTOR   7

Audio Class-Specific AC Interface Processing desc.

◆ USB_CA_EXTENSION_UNIT_DESCRIPTOR

#define USB_CA_EXTENSION_UNIT_DESCRIPTOR   8

Audio Class-Specific AC Interface Extension desc.

◆ USB_CA_EP_GENERAL_DESCRIPTOR

#define USB_CA_EP_GENERAL_DESCRIPTOR   1

Audio Class-Specific general descriptor subtype code.

◆ USB_CA_AS_GENERAL_DESCRIPTOR

#define USB_CA_AS_GENERAL_DESCRIPTOR   1

Audio Class-Specific AS Interface General descriptor.

◆ USB_CA_FORMAT_TYPE_DESCRIPTOR

#define USB_CA_FORMAT_TYPE_DESCRIPTOR   2

Audio Class-Specific AS Interface Format Type desc.

◆ USB_DEVICE_DESCSIZE

#define USB_DEVICE_DESCSIZE   18

Device descriptor size.


◆ USB_CONFIG_DESCSIZE

#define USB_CONFIG_DESCSIZE   9

Configuration descriptor size.


◆ USB_INTERFACE_DESCSIZE

#define USB_INTERFACE_DESCSIZE   9

Interface descriptor size.


◆ USB_ENDPOINT_DESCSIZE

#define USB_ENDPOINT_DESCSIZE   7

Endpoint descriptor size.


◆ USB_DEVICE_QUALIFIER_DESCSIZE

#define USB_DEVICE_QUALIFIER_DESCSIZE   10

Device qualifier descriptor size.


◆ USB_OTHER_SPEED_CONFIG_DESCSIZE

#define USB_OTHER_SPEED_CONFIG_DESCSIZE   9

Device other speed configuration descriptor size.

◆ USB_INTERFACE_ASSOCIATION_DESCSIZE

#define USB_INTERFACE_ASSOCIATION_DESCSIZE   8

INTERFACE_ASSOCIATION descriptor size.


◆ USB_HID_DESCSIZE

#define USB_HID_DESCSIZE   9

HID descriptor size.


◆ USB_SMARTCARD_DESCSIZE

#define USB_SMARTCARD_DESCSIZE   54

CCID descriptor size.


◆ USB_CDC_HEADER_FND_DESCSIZE

#define USB_CDC_HEADER_FND_DESCSIZE   5

CDC Header functional descriptor size.


◆ USB_CDC_CALLMNG_FND_DESCSIZE

#define USB_CDC_CALLMNG_FND_DESCSIZE   5

CDC Call Management functional descriptor size.


◆ USB_CDC_ACM_FND_DESCSIZE

#define USB_CDC_ACM_FND_DESCSIZE   4

CDC Abstract Control Management functional descriptor size.

◆ USB_CA_INPUT_TERMINAL_DESCSIZE

#define USB_CA_INPUT_TERMINAL_DESCSIZE   12

Audio Input Terminal descriptor size.


◆ USB_CA_OUTPUT_TERMINAL_DESCSIZE

#define USB_CA_OUTPUT_TERMINAL_DESCSIZE   9

Audio Output Terminal descriptor size.


◆ USB_CA_EP_GENERAL_DESCSIZE

#define USB_CA_EP_GENERAL_DESCSIZE   7

Audio Class-Specific general descriptor subtype size.

◆ USB_CA_AS_GENERAL_DESCSIZE

#define USB_CA_AS_GENERAL_DESCSIZE   7

Audio Class-Specific AS Interface General desc size.

◆ USB_CA_STD_AS_ENDPOINT_DESCSZIE

#define USB_CA_STD_AS_ENDPOINT_DESCSZIE   9

Audio-class standard audio stream descriptor size.

◆ USB_LS_CTRL_EP_MAXSIZE

#define USB_LS_CTRL_EP_MAXSIZE   8

The max size of low speed control endpoints.


◆ USB_LS_INTR_EP_MAXSIZE

#define USB_LS_INTR_EP_MAXSIZE   8

The max size of low speed interrupt endpoints.


◆ USB_FS_CTRL_EP_MAXSIZE

#define USB_FS_CTRL_EP_MAXSIZE   64

The max size of full speed control endpoints.


◆ USB_FS_INTR_EP_MAXSIZE

#define USB_FS_INTR_EP_MAXSIZE   64

The max size of full speed interrupt endpoints.


◆ USB_FS_BULK_EP_MAXSIZE

#define USB_FS_BULK_EP_MAXSIZE   64

The max size of full speed bulk endpoints.


◆ USB_FS_ISOC_EP_MAXSIZE

#define USB_FS_ISOC_EP_MAXSIZE   1023

The max size of full speed isochronous endpoints.

◆ USB_EPTYPE_CTRL

#define USB_EPTYPE_CTRL   0

Endpoint type control.


◆ USB_EPTYPE_ISOC

#define USB_EPTYPE_ISOC   1

Endpoint type isochron.


◆ USB_EPTYPE_BULK

#define USB_EPTYPE_BULK   2

Endpoint type bulk.


◆ USB_EPTYPE_INTR

#define USB_EPTYPE_INTR   3

Endpoint type interrupt.


◆ USB_EPSYNC_NO

#define USB_EPSYNC_NO   (0 << 2)

Endpoint synchronization type, none.


◆ USB_EPSYNC_ASYNC

#define USB_EPSYNC_ASYNC   (1 << 2)

Endpoint synchronization type, asynchronous.


◆ USB_EPSYNC_ADAPTIVE

#define USB_EPSYNC_ADAPTIVE   (2 << 2)

Endpoint synchronization type, adaptive.


◆ USB_EPSYNC_SYNC

#define USB_EPSYNC_SYNC   (3 << 2)

Endpoint synchronization type, synchronous.


◆ USB_EP_DIR_IN

#define USB_EP_DIR_IN   0x80

Endpoint direction mask.


◆ USB_SETUP_PKT_SIZE

#define USB_SETUP_PKT_SIZE   8

Setup request packet size.


◆ USB_EPNUM_MASK

#define USB_EPNUM_MASK   0x0F

Endpoint number mask.


◆ USB_LANGID_ENUS

#define USB_LANGID_ENUS   0x0409

English-United States language id.


◆ USB_MAX_DEVICE_ADDRESS

#define USB_MAX_DEVICE_ADDRESS   127

Maximum allowable device address.


◆ CONFIG_DESC_BM_REMOTEWAKEUP

#define CONFIG_DESC_BM_REMOTEWAKEUP   0x20

Configuration descriptor attribute macro.


◆ CONFIG_DESC_BM_SELFPOWERED

#define CONFIG_DESC_BM_SELFPOWERED   0x40

Configuration descriptor attribute macro.


◆ CONFIG_DESC_BM_RESERVED_D7

#define CONFIG_DESC_BM_RESERVED_D7   0x80

Configuration descriptor attribute macro.


◆ CONFIG_DESC_BM_TRANSFERTYPE

#define CONFIG_DESC_BM_TRANSFERTYPE   0x03

Configuration descriptor transfer type bitmask.


◆ CONFIG_DESC_MAXPOWER_mA

#define CONFIG_DESC_MAXPOWER_mA ( x ) (((x) + 1) / 2)

Configuration descriptor power macro.


◆ DEVICE_IS_SELFPOWERED

#define DEVICE_IS_SELFPOWERED   0x0001

Standard request GET_STATUS bitmask.


◆ REMOTE_WAKEUP_ENABLED

#define REMOTE_WAKEUP_ENABLED   0x0002

Standard request GET_STATUS bitmask.


◆ USB_FEATURE_ENDPOINT_HALT

#define USB_FEATURE_ENDPOINT_HALT   0

Standard request CLEAR/SET_FEATURE bitmask.


◆ USB_FEATURE_DEVICE_REMOTE_WAKEUP

#define USB_FEATURE_DEVICE_REMOTE_WAKEUP   1

Standard request CLEAR/SET_FEATURE bitmask.


◆ HUB_FEATURE_PORT_RESET

#define HUB_FEATURE_PORT_RESET   4

HUB class request CLEAR/SET_PORT_FEATURE feature selector.

◆ HUB_FEATURE_PORT_POWER

#define HUB_FEATURE_PORT_POWER   8

HUB class request CLEAR/SET_PORT_FEATURE feature selector.

◆ HUB_FEATURE_C_PORT_CONNECTION

#define HUB_FEATURE_C_PORT_CONNECTION   16

HUB class request CLEAR/SET_PORT_FEATURE feature selector.

◆ HUB_FEATURE_C_PORT_RESET

#define HUB_FEATURE_C_PORT_RESET   20

HUB class request CLEAR/SET_PORT_FEATURE feature selector.

◆ HUB_FEATURE_PORT_INDICATOR

#define HUB_FEATURE_PORT_INDICATOR   22

HUB class request CLEAR/SET_PORT_FEATURE feature selector.

◆ USB_CLASS_CDC

#define USB_CLASS_CDC   2

CDC device/interface class code.


◆ USB_CLASS_CDC_DATA

#define USB_CLASS_CDC_DATA   0x0A

CDC Data interface class code.


◆ USB_CLASS_CDC_ACM

#define USB_CLASS_CDC_ACM   2

CDC Abstract Control Model interface subclass code.

◆ USB_CLASS_CDC_HFN

#define USB_CLASS_CDC_HFN   0

CDC class Header Functional Descriptor subtype.


◆ USB_CLASS_CDC_CMNGFN

#define USB_CLASS_CDC_CMNGFN   1

CDC class Call Management Functional Descriptor subtype.

◆ USB_CLASS_CDC_ACMFN

#define USB_CLASS_CDC_ACMFN   2

CDC class Abstract Control Management Functional Descriptor subtype.

◆ USB_CLASS_CDC_UNIONFN

#define USB_CLASS_CDC_UNIONFN   6

CDC class Union Functional Descriptor subtype.


◆ USB_CLASS_HID

#define USB_CLASS_HID   3

HID device/interface class code.


◆ USB_CLASS_HID_KEYBOARD

#define USB_CLASS_HID_KEYBOARD   1

HID keyboard interface protocol code.


◆ USB_CLASS_HID_MOUSE

#define USB_CLASS_HID_MOUSE   2

HID mouse interface protocol code.


◆ USB_CLASS_HUB

#define USB_CLASS_HUB   9

HUB device/interface class code.


◆ USB_CLASS_MSD

#define USB_CLASS_MSD   8

MSD device/interface class code.


◆ USB_CLASS_MSD_BOT_TRANSPORT

#define USB_CLASS_MSD_BOT_TRANSPORT   0x50

MSD Bulk Only Transport protocol.


◆ USB_CLASS_MSD_SCSI_CMDSET

#define USB_CLASS_MSD_SCSI_CMDSET   6

MSD Subclass SCSI transparent command set.


◆ USB_CLASS_MSD_CSW_CMDPASSED

#define USB_CLASS_MSD_CSW_CMDPASSED   0

MSD BOT Command status wrapper command passed code.

◆ USB_CLASS_MSD_CSW_CMDFAILED

#define USB_CLASS_MSD_CSW_CMDFAILED   1

MSD BOT Command status wrapper command failed code.

◆ USB_CLASS_MSD_CSW_PHASEERROR

#define USB_CLASS_MSD_CSW_PHASEERROR   2

MSD BOT Command status wrapper cmd phase error code.

◆ USB_CLASS_AUDIO

#define USB_CLASS_AUDIO   1

Audio interface class code.


◆ USB_CLASS_AUDIO_CONTROL

#define USB_CLASS_AUDIO_CONTROL   1

Audio subclass code for control interface.


◆ USB_CLASS_AUDIO_STREAMING

#define USB_CLASS_AUDIO_STREAMING   2

Audio subclass code for streaming interface.


◆ USB_CLASS_AUDIO_MIDISTREAMING

#define USB_CLASS_AUDIO_MIDISTREAMING   3

Audio subclass code for midi streaming interface.


◆ USB_CLASS_MISCELLANEOUS

#define USB_CLASS_MISCELLANEOUS   0xEF

MISCELLANEOUS device class code.


◆ USB_CLASS_MISC_COMMON_SUBCLASS

#define USB_CLASS_MISC_COMMON_SUBCLASS   2

MISCELLANEOUS Common sub class code.


◆ USB_CLASS_MISC_IAD_PROTOCOL

#define USB_CLASS_MISC_IAD_PROTOCOL   1

MISCELLANEOUS Interface Association Descriptor protocol code.

◆ PORT_FULL_SPEED

#define PORT_FULL_SPEED   1

Full speed return value for USBH_GetPortSpeed() .

◆ PORT_LOW_SPEED

#define PORT_LOW_SPEED   2

Low speed return value for USBH_GetPortSpeed() .


◆ USB_DPLL_SRC_LFXO

#define USB_DPLL_SRC_LFXO   1

Use LFXO as DPLL clock source.


◆ USB_DPLL_SRC_HFXO

#define USB_DPLL_SRC_HFXO   2

Use HFXO as DPLL clock source.


◆ STATIC_CONST_STRING_DESC

#define STATIC_CONST_STRING_DESC ( _name,
...
)
Value:
SL_PACK_START(1) \
typedef struct \
{ \
uint8_t len; \
uint8_t type; \
char16_t name[1 + sizeof (( char16_t []){ __VA_ARGS__ }) / 2]; \
} SL_ATTRIBUTE_PACKED _##_name; \
SL_PACK_END() \
SL_ALIGN(4) \
SL_PACK_START(1) \
static const _##_name _name SL_ATTRIBUTE_ALIGN(4) = \
{ \
.len = sizeof (_##_name) - 2, \
.type = USB_STRING_DESCRIPTOR , \
.name = { __VA_ARGS__ }, \
.name[(( sizeof (_##_name) - 2) / 2) - 1] = '\0' \
} \
SL_PACK_END()

Macro for creating USB compliant UTF-16LE UNICODE string descriptors.


Example: STATIC_CONST_STRING_DESC(iManufacturer, 'E','n','e','r','g','y',' ','M','i','c','r','o',' ','A','S');

Note
The size of the resulting struct will be two byte larger than a USB string descriptor. This is to accommodate a terminating null char for the string. The value assigned to the 'len' member does not take this into account and is therefore correct usb wise.

◆ STATIC_CONST_STRING_DESC_LANGID

#define STATIC_CONST_STRING_DESC_LANGID ( _name,
x,
y
)
Value:
SL_PACK_START(1) \
typedef struct \
{ \
uint8_t len; \
uint8_t type; \
uint8_t name[2]; \
} SL_ATTRIBUTE_PACKED _##_name; \
SL_PACK_END() \
SL_ALIGN(4) \
SL_PACK_START(1) \
static const _##_name _name SL_ATTRIBUTE_ALIGN(4) = \
{ \
.len = 4, \
.type = USB_STRING_DESCRIPTOR , \
.name = { y, x } \
} \
SL_PACK_END()

Macro for creating USB compliant language string descriptors.


Example: STATIC_CONST_STRING_DESC_LANGID(langID, 0x04, 0x09) ;

◆ UBUF

#define UBUF ( x,
y
) SL_ALIGN(4) uint8_t x[((y) + 3) & ~3] SL_ATTRIBUTE_ALIGN(4)

Macro for creating WORD (4 byte) aligned uint8_t array with size which is a multiple of WORD size.


Example:
UBUF(rxBuffer, 37) ; => uint8_t rxBuffer[40];

◆ STATIC_UBUF

#define STATIC_UBUF ( x,
y
) SL_ALIGN(4) static uint8_t x[((y) + 3) & ~3] SL_ATTRIBUTE_ALIGN(4)

Macro for creating WORD (4 byte) aligned static uint8_t arrays with size which is a multiple of WORD size.


Example:
STATIC_UBUF(rxBuffer, 37) ; => static uint8_t rxBuffer[40];

Typedef Documentation

◆ char16_t

typedef unsigned short char16_t

Data type used for UTF-16LE formatted USB string descriptors.

◆ USB_XferCompleteCb_TypeDef

typedef int(* USB_XferCompleteCb_TypeDef) ( USB_Status_TypeDef status, uint32_t xferred, uint32_t remaining)

USB transfer callback function.

The callback function is called when a transfer has completed. An application should check the status, xferred and optionally the remaining parameters before deciding if the transfer is usable. In the case where the transfer is part of a control request data stage, the callback function should return an appropriate USB_Status_TypeDef status.

Parameters
[in] status The transfer status. See USB_Status_TypeDef .
[in] xferred Number of bytes actually transferred.
[in] remaining Number of bytes not transferred.
Returns
USB_STATUS_OK on success, else an appropriate error code.

◆ USBTIMER_Callback_TypeDef

typedef void(* USBTIMER_Callback_TypeDef) (void)

USBTIMER callback function.

The callback function is called when an USBTIMER has expired. The callback is done with interrupts disabled.

Enumeration Type Documentation

◆ USB_Status_TypeDef

enum USB_Status_TypeDef

USB transfer status enumerator.

Enumerator
USB_STATUS_OK

No errors detected.


USB_STATUS_REQ_ERR

Setup request error.


USB_STATUS_EP_BUSY

Endpoint is busy.


USB_STATUS_REQ_UNHANDLED

Setup request not handled.


USB_STATUS_ILLEGAL

Illegal operation attempted.


USB_STATUS_EP_STALLED

Endpoint is stalled.


USB_STATUS_EP_ABORTED

Endpoint transfer was aborted.


USB_STATUS_EP_ERROR

Endpoint transfer error.


USB_STATUS_EP_NAK

Endpoint NAK'ed transfer request.


USB_STATUS_DEVICE_UNCONFIGURED

Device is unconfigured.


USB_STATUS_DEVICE_SUSPENDED

Device is suspended.


USB_STATUS_DEVICE_RESET

Device is/was reset.


USB_STATUS_TIMEOUT

Transfer timeout.


USB_STATUS_DEVICE_REMOVED

Device was removed.


USB_STATUS_HC_BUSY

Host channel is busy.


USB_STATUS_DEVICE_MALFUNCTION

Malfunctioning device attached.


USB_STATUS_PORT_OVERCURRENT

VBUS shortcircuit/overcurrent failure.