Unit USB

This driver does not attempt to do any intelligent power management, bandwidth allocation, or transfer scheduling. Devices are always set to their first listed configuration regardless of power requirements. Requests are simply passed to the Host Controller Driver in the order submitted, the Host Controller Driver is responsible for doing any more intelligent scheduling if desired.

This driver does not support multiple configurations per USB device.If a device happens to have multiple configurations, the first one will be assigned (see devices below for more information).

By design, it is possible to implement a host controller driver for different host controller hardware without changing any of this code, as long as the host controller driver provides the functions declared in TUSBHost (Start, Stop, Reset, Submit and Cancel).

By design, this driver has a hard-coded dependency on the USB hub driver because USB is useless without hubs.

To initialize this core USB driver, USBInit must be called by the system startup code. See that function for details.

If the flag USB_AUTOSTART is not set then USBStart must be called to start the USB core. See that function for details.

The other functions exported by this core USB driver are mostly intended to be used by USB device drivers.

Debugging messages in this driver can be enabled by changing the value of USB_DEFAULT_LOG_LEVEL and by enabling the USB_DEBUG define in GlobalDefines.

Be careful when enabling USB debugging as the USB core can generate a lot of messages due to constant polling of interrupt endpoints on devices such as hubs, keyboards and mice.

USB Device

USB devices are the generic implementation of anything that can be connected to the USB bus. All USB devices require a driver to implement the specific behaviour of the device but at the generic level each device will have:

One or more configurations available. The USB core will first offer the device to drivers without a configuration being selected, the driver may choose a specific configuration if required otherwise the core will simply select the first available configuration.

One or more interfaces available. On devices with multiple interfaces, the USB core supports different drivers binding to different interfaces. This way combination devices are supported.

One or more endpoints available. All devices must have a control endpoint and most devices will have one or more bulk, interrupt or isochronous endpoints as well. The USB core will only communicate with the control endpoint to perform generic operations like reading the descriptors and assigning a device address.

Drivers are expected to understand which endpoints they need to communicate with to provide the device specific functionality.

Devices are considered dynamic by the USB core and can be connected or disconnected at any time. The hub driver is responsible for attaching and detaching devices in response to hub status change events and for binding or unbinding drivers as devices are added or removed.

USB Driver

USB drivers implement support for specific devices or specific device classes and provide the interfaces to present those devices to other parts of the system. For example the USB Mass Storage driver accepts devices of the mass storage class and presents them to the file system as a disk device.

All drivers must implement the functions defined in TUSBDriver (Bind and Unbind) and must register themselves with the USB core by calling USBDriverRegister. When a new device is detected the hub driver will enumerate all drivers and call their Bind functions until either one of the drivers accepts the device or all drivers have rejected the device. The hub driver first attempts to bind each driver to the device itself and then offers each driver the option to bind to a single interface on the device. In this way devices that have multiple interfaces of different classes (such as a wireless mouse and keyboard dongle) can actually be bound to multiple drivers which each service a specific interface.

When a new driver is registered the USB core will call the drivers Bind function for each device already present to allow the driver an opportunity to bind to any existing devices that are not serviced by other drivers.

When a device is disconnected the hub driver will first call the Unbind function of any driver that is servicing the device to allow the driver to clean up allocated resources and cancel outstanding requests. Drivers must be careful not to block the hub driver during this process, for example trying to send a USB control message to the device at this time will likely be pointless as in many cases the device will have already been disconnected from the system.

USB Host

USB hosts implement the hardware level interface that supports sending USB requests to the hardware and receiving responses. All handling of interrupts, DMA, transaction sequence, errors and resubmitting/retrying requests is done by the USB host driver. All host drivers must implement the functions defined in TUSBHost (Start, Stop, Reset, Submit and Cancel) and must register themselves with the USB core by calling USBHostRegister. When the USB core is started each registered host driver will be called via the Start function so it can initialize itself and allocate locks, buffers and other resources required to interact with the hardware.

A host driver can also be registered after the USB core has been started and it will be given the opportunity to start itself immediately. In this way USB hosts can potentially be hot pluggable.

Each host driver must also implement a root hub which represents the port or ports that are directly connected to the controller hardware. In many cases this will not be a real hub but will be simulated in the host driver so that the hub driver can interact with it as though it was a standard hub device.

USB Hub

Hubs are one of the fundamental devices in USB and are used to provide connection points (ports) for additional devices. Note that even if no "external" hub is plugged in, the USB still will have at least one logical hub (the root hub) and usually additional "internal" hubs. That is, a USB is a tree of devices where the root node and all non-leaf nodes are hubs. A port on a USB hub may correspond to a port you can physically plug a device into or may correspond to an internal port. USB hubs are commonly based around a design that has 4 ports per hub, so a standard 7 port hub will most often appear as 2 hubs to this driver with one hub connected to a port on the other.

This hub driver is an example of a USB device driver, but it is somewhat special as it mandatory to include this driver if USB is supported at all. This is because it would be impossible to access any USB devices if a hub driver were not available. This hub driver also uses some interfaces in the core driver, such as USBDeviceAttach, that are not useful to any other USB device driver.

The initial entry point of this USB hub driver is USBHubDriverBind, which is called when the USB core has configured a newly attached USB device that may be a hub. USBHubDriverBind is responsible for checking if the device is a hub, and if so, doing hub-specific setup, reading the hub descriptor, powering on the ports, and submitting an asynchronous USB interrupt request to the hub's status change endpoint.

Everything else this hub driver does happens asynchronously as a response to a status change request being completed. Every USB hub has exactly one IN interrupt endpoint called the "status change endpoint". The hub responds on this endpoint whenever the status of the hub or one of the hub's ports has changed, for example when a USB device has been connected or disconnected from a port.

At the hardware level, when a hub has data to send on its status change endpoint, an interrupt will come in from the USB host controller. This eventually will result in the status change transfer being completed and USBHubStatusComplete being called. Thus, the detection of status changes is interrupt-driven and is not implemented by polling at the software level. (At the hardware level, USB is still a polled bus, but the host controller hardware handles that for us). Upon detecting a status change on one or more ports on a hub, the hub driver then must submit one or more control messages to the hub to determine exactly what changed on the affected ports.

`USB_DEVICE_PREFIX = 'USB';`	Name prefix for USB Devices
`USB_DRIVER_PREFIX = 'USB';`	Name prefix for USB Drivers
`USB_HOST_PREFIX = 'USBHost';`	Name prefix for USB Hosts

`USB_STATE_DETACHED = 0;`
`USB_STATE_DETACHING = 1;`
`USB_STATE_ATTACHING = 2;`
`USB_STATE_ATTACHED = 3;`

`USB_STATE_MAX = 3;`

`USB_STATUS_UNBOUND = 0;`
`USB_STATUS_BOUND = 1;`

`USB_STATUS_MAX = 1;`

`USBHOST_TYPE_NONE = 0;`
`USBHOST_TYPE_EHCI = 1;`
`USBHOST_TYPE_OHCI = 2;`
`USBHOST_TYPE_UHCI = 3;`
`USBHOST_TYPE_XHCI = 4;`
`USBHOST_TYPE_DWCOTG = 5;`

`USBHOST_TYPE_MAX = 5;`

`USBHOST_STATE_DISABLED = 0;`
`USBHOST_STATE_ENABLED = 1;`

`USBHOST_STATE_MAX = 1;`

`USBHOST_FLAG_NONE = $00000000;`
`USBHOST_FLAG_SHARED = $00000001;`
`USBHOST_FLAG_NOCACHE = $00000002;`

`USB_STATUS_SUCCESS = 0;`	Function successful
`USB_STATUS_DEVICE_DETACHED = 1;`	USB device was detached
`USB_STATUS_DEVICE_UNSUPPORTED = 2;`	USB device is unsupported by the driver
`USB_STATUS_HARDWARE_ERROR = 3;`	Hardware error of some form occurred
`USB_STATUS_INVALID_DATA = 4;`	Invalid data was received
`USB_STATUS_INVALID_PARAMETER = 5;`	An invalid parameter was passed to the function
`USB_STATUS_NOT_PROCESSED = 6;`	The USB request has been submitted but not yet processed
`USB_STATUS_OUT_OF_MEMORY = 7;`	Failed to allocate memory
`USB_STATUS_TIMEOUT = 8;`	The operation timed out
`USB_STATUS_UNSUPPORTED_REQUEST = 9;`	The request is unsupported
`USB_STATUS_HARDWARE_STALL = 10;`	The device reported an endpoint STALL
`USB_STATUS_OPERATION_FAILED = 11;`	The operation was not able to be completed
`USB_STATUS_NOT_BOUND = 12;`	USB device is not bound to a driver
`USB_STATUS_ALREADY_BOUND = 13;`	USB device is already bound to a driver
`USB_STATUS_NOT_READY = 14;`	USB device is not in a ready state
`USB_STATUS_NOT_COMPLETED = 15;`	The USB request has been scheduled but not yet completed
`USB_STATUS_CANCELLED = 16;`	The USB request was cancelled
`USB_STATUS_NOT_VALID = 17;`	The USB request is not valid

`USB_REQUEST_FLAG_NONE = $00000000;`
`USB_REQUEST_FLAG_ALLOCATED = $00000001;`	Request data has been allocated by USBBufferAllocate (and can be freed by USBBufferRelease)
`USB_REQUEST_FLAG_COMPATIBLE = $00000002;`	Request data is compatible with DMA requirements of host configuration (Can be passed directly to DMA)
`USB_REQUEST_FLAG_ALIGNED = $00000004;`	Request data is aligned according to host configuration
`USB_REQUEST_FLAG_SIZED = $00000008;`	Request data is sized according to host configuration
`USB_REQUEST_FLAG_SHARED = $00000010;`	Request data has been allocated from Shared memory
`USB_REQUEST_FLAG_NOCACHE = $00000020;`	Request data has been allocated from Non Cached memory

`USB_CONTROL_PHASE_SETUP = 0;`	Setup phase of a Control request (Using SetupData)
`USB_CONTROL_PHASE_DATA = 1;`	Data phase of a Control request (Using Data buffer)
`USB_CONTROL_PHASE_STATUS = 2;`	Status phase of a Control request (Using StatusData)

`USB_CONTROL_GET_TIMEOUT = 5000;`
`USB_CONTROL_SET_TIMEOUT = 5000;`

`USB_TYPE_NONE = 0;`

`USB_TYPE_MAX = 0;`

`USB_DEFAULT_MAX_PACKET_SIZE = 8;`	Default maximum packet size for unconfigured Endpoints
`USB_ALTERNATE_MAX_PACKET_SIZE = 64;`

`USB_MAX_PACKET_SIZE = 1024;`	Maximum packet size of any USB Endpoint (1024 is the maximum allowed by USB 2.0)

Values for bmAttributes in type TUSBConfigurationDescriptor

`USB_CONFIGURATION_ATTRIBUTE_RESERVED_HIGH = $80;`
`USB_CONFIGURATION_ATTRIBUTE_SELF_POWERED = $40;`
`USB_CONFIGURATION_ATTRIBUTE_REMOTE_WAKEUP = $20;`
`USB_CONFIGURATION_ATTRIBUTE_RESERVED_LOW = $1f;`

See Figure 9-4 of Section 9.4 of the USB 2.0 specification
Values for wStatus in type TUSBDeviceStatus (Device Recipient)

`USB_DEVICE_STATUS_SELF_POWERED = (1 shl 0);`
`USB_DEVICE_STATUS_REMOTE_WAKEUP = (1 shl 1);`

See Figure 9-6 of Section 9.4 of the USB 2.0 specification
Values for vStatus in type TUSBDeviceStatus (Endpoint Recipient)

`USB_ENDPOINT_STATUS_HALT = (1 shl 0);`

`USB_SPEED_HIGH = 0;`	480 Mb/s
`USB_SPEED_FULL = 1;`	12 Mb/s
`USB_SPEED_LOW = 2;`	1.5 Mb/s
`USB_SPEED_SUPER = 3;`	5 Gb/s
`USB_SPEED_SUPERPLUS = 4;`	10 Gb/s

Values for bmAttributes (bits 1..0) in type TUSBEndpointDescriptor

`USB_TRANSFER_TYPE_CONTROL = 0;`
`USB_TRANSFER_TYPE_ISOCHRONOUS = 1;`
`USB_TRANSFER_TYPE_BULK = 2;`
`USB_TRANSFER_TYPE_INTERRUPT = 3;`
`USB_TRANSFER_TYPE_MASK = $03;`

`USB_TRANSFER_SIZE_8_BIT = 0;`
`USB_TRANSFER_SIZE_16_BIT = 1;`
`USB_TRANSFER_SIZE_32_BIT = 2;`
`USB_TRANSFER_SIZE_64_BIT = 3;`

See Table 9-5 in Section 9.4 of the USB 2.0 specification
Values for bDescriptorType in types TUSBDescriptorHeader and TUSBDeviceDescriptor

`USB_DESCRIPTOR_TYPE_DEVICE = 1;`
`USB_DESCRIPTOR_TYPE_CONFIGURATION = 2;`
`USB_DESCRIPTOR_TYPE_STRING = 3;`
`USB_DESCRIPTOR_TYPE_INTERFACE = 4;`
`USB_DESCRIPTOR_TYPE_ENDPOINT = 5;`
`USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER = 6;`
`USB_DESCRIPTOR_TYPE_OTHER_SPEED_CONFIGURATION = 7;`
`USB_DESCRIPTOR_TYPE_INTERFACE_POWER = 8;`
`USB_DESCRIPTOR_TYPE_CLASS_DEVICE = $21;`	(USB_REQUEST_TYPE_CLASS shl 5) or USB_DESCRIPTOR_TYPE_DEVICE (See USB Device Class Definition for Audio Devices Specification)
`USB_DESCRIPTOR_TYPE_CLASS_CONFIGURATION = $22;`	(USB_REQUEST_TYPE_CLASS shl 5) or USB_DESCRIPTOR_TYPE_CONFIGURATION
`USB_DESCRIPTOR_TYPE_CLASS_STRING = $23;`	(USB_REQUEST_TYPE_CLASS shl 5) or USB_DESCRIPTOR_TYPE_STRING
`USB_DESCRIPTOR_TYPE_CLASS_INTERFACE = $24;`	(USB_REQUEST_TYPE_CLASS shl 5) or USB_DESCRIPTOR_TYPE_INTERFACE
`USB_DESCRIPTOR_TYPE_CLASS_ENDPOINT = $25;`	(USB_REQUEST_TYPE_CLASS shl 5) or USB_DESCRIPTOR_TYPE_ENDPOINT
`USB_DESCRIPTOR_TYPE_HUB = $29;`

See Table 9-2 of Section 9.3 of the USB 2.0 specification
Values for bmRequestType (bit 7) in type TUSBControlSetupData

`USB_DIRECTION_OUT = 0;`	Host to Device
`USB_DIRECTION_IN = 1;`	Device to Host

See Table 9-2 of Section 9.3 of the USB 2.0 specification
bits 6..5 of bmRequestType in type TUSBControlSetupData

`USB_REQUEST_TYPE_STANDARD = 0;`
`USB_REQUEST_TYPE_CLASS = 1;`
`USB_REQUEST_TYPE_VENDOR = 2;`
`USB_REQUEST_TYPE_RESERVED = 3;`

See Table 9-2 of Section 9.3 of the USB 2.0 specification
bits 4..0 of bmRequestType in type TUSBControlSetupData

`USB_REQUEST_RECIPIENT_DEVICE = 0;`
`USB_REQUEST_RECIPIENT_INTERFACE = 1;`
`USB_REQUEST_RECIPIENT_ENDPOINT = 2;`
`USB_REQUEST_RECIPIENT_OTHER = 3;`

See Table 9-2 of Section 9.3 of the USB 2.0 specification
Values of the bitfields within the bmRequestType member of TUSBControlSetupData

`USB_BMREQUESTTYPE_DIR_OUT = (USB_DIRECTION_OUT shl 7);`
`USB_BMREQUESTTYPE_DIR_IN = (USB_DIRECTION_IN shl 7);`
`USB_BMREQUESTTYPE_DIR_MASK = ($01 shl 7);`
`USB_BMREQUESTTYPE_TYPE_STANDARD = (USB_REQUEST_TYPE_STANDARD shl 5);`
`USB_BMREQUESTTYPE_TYPE_CLASS = (USB_REQUEST_TYPE_CLASS shl 5);`
`USB_BMREQUESTTYPE_TYPE_VENDOR = (USB_REQUEST_TYPE_VENDOR shl 5);`
`USB_BMREQUESTTYPE_TYPE_RESERVED = (USB_REQUEST_TYPE_RESERVED shl 5);`
`USB_BMREQUESTTYPE_TYPE_MASK = ($03 shl 5);`
`USB_BMREQUESTTYPE_RECIPIENT_DEVICE = (USB_REQUEST_RECIPIENT_DEVICE shl 0);`
`USB_BMREQUESTTYPE_RECIPIENT_INTERFACE = (USB_REQUEST_RECIPIENT_INTERFACE shl 0);`
`USB_BMREQUESTTYPE_RECIPIENT_ENDPOINT = (USB_REQUEST_RECIPIENT_ENDPOINT shl 0);`
`USB_BMREQUESTTYPE_RECIPIENT_OTHER = (USB_REQUEST_RECIPIENT_OTHER shl 0);`
`USB_BMREQUESTTYPE_RECIPIENT_MASK = ($1f shl 0);`

See Table 9-3 in Section 9.4 of the USB 2.0 specification
Values for bRequest in type TUSBControlSetupData

`USB_DEVICE_REQUEST_GET_STATUS = 0;`
`USB_DEVICE_REQUEST_CLEAR_FEATURE = 1;`
`USB_DEVICE_REQUEST_SET_FEATURE = 3;`
`USB_DEVICE_REQUEST_SET_ADDRESS = 5;`
`USB_DEVICE_REQUEST_GET_DESCRIPTOR = 6;`
`USB_DEVICE_REQUEST_SET_DESCRIPTOR = 7;`
`USB_DEVICE_REQUEST_GET_CONFIGURATION = 8;`
`USB_DEVICE_REQUEST_SET_CONFIGURATION = 9;`
`USB_DEVICE_REQUEST_GET_INTERFACE = 10;`
`USB_DEVICE_REQUEST_SET_INTERFACE = 11;`
`USB_DEVICE_REQUEST_SYNCH_FRAME = 12;`

Unit USB

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Constants

Type definitions

Public variables

Function declarations

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See Table 9-6 in Section 9.4 of the USB 2.0 specification
Values for wValue in type TUSBControlSetupData

`USB_DEVICE_FEATURE_ENDPOINT_HALT = 0;`	Endpoint Only
`USB_DEVICE_FEATURE_REMOTE_WAKEUP = 1;`	Device Only
`USB_DEVICE_FEATURE_TEST_MODE = 2;`	Device Only

See Table 9-7 in Section 9.4 of the USB 2.0 specification
Values for wIndex in type TUSBControlSetupData

`USB_DEVICE_TEST_MODE_J = $01;`
`USB_DEVICE_TEST_MODE_K = $02;`
`USB_DEVICE_TEST_MODE_SE0_NAK = $03;`
`USB_DEVICE_TEST_MODE_PACKET = $04;`
`USB_DEVICE_TEST_MODE_FORCE_ENABLE = $05;`

See ????????

`USB_PACKETID_UNDEF_0 = $f0;`
`USB_PACKETID_OUT = $e1;`
`USB_PACKETID_ACK = $d2;`
`USB_PACKETID_DATA0 = $c3;`
`USB_PACKETID_UNDEF_4 = $b4;`
`USB_PACKETID_SOF = $a5;`
`USB_PACKETID_UNDEF_6 = $96;`
`USB_PACKETID_UNDEF_7 = $87;`
`USB_PACKETID_UNDEF_8 = $78;`
`USB_PACKETID_IN = $69;`
`USB_PACKETID_NAK = $5a;`
`USB_PACKETID_DATA1 = $4b;`
`USB_PACKETID_PREAMBLE = $3c;`
`USB_PACKETID_SETUP = $2d;`
`USB_PACKETID_STALL = $1e;`
`USB_PACKETID_UNDEF_F = $0f;`

bDeviceClass/bInterfaceClass
See: https://www.usb.org/defined-class-codes
Note that only the hub class is defined in the USB 2.0 specification itself the other standard class codes are defined in additional specifications

`USB_CLASS_CODE_INTERFACE_SPECIFIC = $00;`	Use class code info from Interface Descriptors
`USB_CLASS_CODE_AUDIO = $01;`	Audio device
`USB_CLASS_CODE_COMMUNICATIONS_AND_CDC_CONTROL = $02;`	Communication device class
`USB_CLASS_CODE_HID = $03;`	HID device class
`USB_CLASS_CODE_PHYSICAL = $05;`	Physical device class
`USB_CLASS_CODE_IMAGE = $06;`	Still Imaging device
`USB_CLASS_CODE_PRINTER = $07;`	Printer device
`USB_CLASS_CODE_MASS_STORAGE = $08;`	Mass Storage device
`USB_CLASS_CODE_HUB = $09;`	Hub Device
`USB_CLASS_CODE_CDC_DATA = $0a;`	CDC data device
`USB_CLASS_CODE_SMART_CARD = $0b;`	Smart Card device
`USB_CLASS_CODE_CONTENT_SECURITY = $0d;`	Content Security device
`USB_CLASS_CODE_VIDEO = $0e;`	Video device
`USB_CLASS_CODE_PERSONAL_HEALTHCARE = $0f;`	Personal Healthcare device
`USB_CLASS_CODE_AUDIO_VIDEO = $10;`	Audio/Video Devices
`USB_CLASS_CODE_BILLBOARD = $11;`	Billboard Device
`USB_CLASS_CODE_DIAGNOSTIC = $DC;`	Diagnostic Device
`USB_CLASS_CODE_WIRELESS_CONTROLLER = $e0;`	Wireless Controller
`USB_CLASS_CODE_MISCELLANEOUS = $ef;`	Miscellaneous
`USB_CLASS_CODE_APPLICATION_SPECIFIC = $fe;`	Application Specific
`USB_CLASS_CODE_VENDOR_SPECIFIC = $ff;`	Vendor Specific

bDeviceSubClass/bInterfaceSubClass
See: https://www.usb.org/defined-class-codes

Communications Devices
`USB_SUBCLASS_CDC_DLCM = $01;`	Direct Line Control Model (USBPSTN1.2)
`USB_SUBCLASS_CDC_ACM = $02;`	Abstract Control Model (USBPSTN1.2)
`USB_SUBCLASS_CDC_TCM = $03;`	Telephone Control Model (USBPSTN1.2)
`USB_SUBCLASS_CDC_MCCM = $04;`	Multi-Channel Control Model (USBISDN1.2)
`USB_SUBCLASS_CDC_CCM = $05;`	CAPI Control Model (USBISDN1.2)
`USB_SUBCLASS_CDC_ETHERNET = $06;`	Ethernet Networking Control Model (USBECM1.2)
`USB_SUBCLASS_CDC_WHCM = $08;`	Wireless Handset Control Model (USBWMC1.1)
`USB_SUBCLASS_CDC_DMM = $09;`	Device Management Model (USBWMC1.1)
`USB_SUBCLASS_CDC_MDLM = $0a;`	Mobile Direct Line Model (USBWMC1.1)
`USB_SUBCLASS_CDC_OBEX = $0b;`	OBEX (USBWMC1.1)
`USB_SUBCLASS_CDC_EEM = $0c;`	Ethernet Emulation Model (USBEEM1.0)
`USB_SUBCLASS_CDC_NCM = $0d;`	Network Control Model (USBNCM1.0)
`USB_SUBCLASS_CDC_MBIM = $0e;`
Still Image Devices
`USB_SUBCLASS_IMAGE_DEFAULT = $01;`
Mass Storage Devices
`USB_SUBCLASS_MASS_STORAGE_DEFAULT = $00;`	SCSI command set not reported, De facto use
`USB_SUBCLASS_MASS_STORAGE_RBC = $01;`	Reduced Block Commands (RBC), INCITS 330:2000, available at http://www.t10.org
`USB_SUBCLASS_MASS_STORAGE_MMC5 = $02;`	Multi-Media Command Set 5 (MMC-5), T10/1675-D available at http://www.t10.org
`USB_SUBCLASS_MASS_STORAGE_QIC157 = $03;`	Obsolete was QIC-157
`USB_SUBCLASS_MASS_STORAGE_UFI = $04;`	UFI Specifies how to interface Floppy Disk Drives to USB
`USB_SUBCLASS_MASS_STORAGE_SFF8070I = $05;`	Obsolete Was SFF-8070i
`USB_SUBCLASS_MASS_STORAGE_SCSI = $06;`	SCSI transparent command set
`USB_SUBCLASS_MASS_STORAGE_LSDFS = $07; {LSD FS }`
`USB_SUBCLASS_MASS_STORAGE_IEEE1667 = $08;`	IEEE 1667 Standard Protocol for Authentication in Host Attachments of Transient Storage Devices (IEEE 1667) available at www.ieee1667.com
`USB_SUBCLASS_MASS_STORAGE_VENDOR_SPECIFIC = $ff;`	Specific to device vendor, De facto use
Content Security Devices
`USB_SUBCLASS_CONTENT_SECURITY_DEFAULT = $00;`
Audio/Video Devices
`USB_SUBCLASS_AUDIO_VIDEO_CONTROL = $01;`	Audio/Video Device AVControl Interface
`USB_SUBCLASS_AUDIO_VIDEO_DATA_VIDEO = $02;`	Audio/Video Device AVData Video Streaming Interface
`USB_SUBCLASS_AUDIO_VIDEO_DATA_AUDIO = $03;`	Audio/Video Device AVData Audio Streaming Interface
Billboard Devices
`USB_SUBCLASS_BILLBOARD_DEFAULT = $00;`
Diagnostic Device
`USB_SUBCLASS_DIAGNOSTIC_DEFAULT = $01;`
Wireless Controller
`USB_SUBCLASS_WIRELESS_CONTROLLER_BLUETOOTH = $01;`
`USB_SUBCLASS_WIRELESS_CONTROLLER_USB = $02;`
Miscellaneous
`USB_SUBCLASS_MISCELLANEOUS_SYNC = $01;`
`USB_SUBCLASS_MISCELLANEOUS_IAD_WAMP = $02;`	Interface Association Descriptor/Wire Adapter Multifunction Peripheral
`USB_SUBCLASS_MISCELLANEOUS_CBAF = $03;`	Cable Based Association Framework
`USB_SUBCLASS_MISCELLANEOUS_RNDIS = $04;`
`USB_SUBCLASS_MISCELLANEOUS_USB3VISION = $05;`
Application Specific
`USB_SUBCLASS_APPLICATION_SPECIFIC_DFU = $01;`
`USB_SUBCLASS_APPLICATION_SPECIFIC_IRDA = $02;`
`USB_SUBCLASS_APPLICATION_SPECIFIC_TMC = $02;`
Vendor Specific
`USB_SUBCLASS_VENDOR_SPECIFIC = $ff;`	Vendor Specific

bDeviceProtocol/bInterfaceProtocol
See: https://www.usb.org/defined-class-codes

Communications Devices
`USB_PROTOCOL_CDC_ACM_NONE = 0;`	Abstract Control Model - No class specific protocol required
`USB_PROTOCOL_CDC_ACM_AT_V25TER = 1;`	Abstract Control Model - AT Commands: V.250 etc
`USB_PROTOCOL_CDC_ACM_AT_PCCA101 = 2;`	Abstract Control Model - AT Commands defined by PCCA-101
`USB_PROTOCOL_CDC_ACM_AT_PCCA101_WAKE = 3;`	Abstract Control Model - AT Commands defined by PCCA-101 & Annex O
`USB_PROTOCOL_CDC_ACM_AT_GSM = 4;`	Abstract Control Model - AT Commands defined by GSM 07.07
`USB_PROTOCOL_CDC_ACM_AT_3G = 5;`	Abstract Control Model - AT Commands defined by 3GPP 27.007
`USB_PROTOCOL_CDC_ACM_AT_CDMA = 6;`	Abstract Control Model - AT Commands defined by TIA for CDMA
`USB_PROTOCOL_CDC_ACM_VENDOR = $ff;`	Abstract Control Model - Vendor-specific
`USB_PROTOCOL_CDC_EEM = 7;`	Ethernet Emulation Model
`USB_PROTOCOL_CDC_NCM_NTB = 1;`	Network Control Model - Network Transfer Block
`USB_PROTOCOL_CDC_MBIM_NTB = 2;`	Network Transfer Block
Still Image Devices
`USB_PROTOCOL_IMAGE_DEFAULT = $01;`
Mass Storage Devices
`USB_PROTOCOL_MASS_STORAGE_CBI = $00;`	CBI (with command completion interrupt) USB Mass Storage Class Control/Bulk/Interrupt Transport
`USB_PROTOCOL_MASS_STORAGE_CB = $01;`	CBI (with no command completion interrupt) USB Mass Storage Class Control/Bulk/Interrupt Transport
`USB_PROTOCOL_MASS_STORAGE_BBB = $50;`	BBB USB Mass Storage Class Bulk-Only Transport
`USB_PROTOCOL_MASS_STORAGE_UAS = $62;`	UAS
`USB_PROTOCOL_MASS_STORAGE_VENDOR_SPECIFIC = $ff;`	Specific to device vendor, De facto use
Hub Devices
`USB_PROTOCOL_HUB_FULLSPEED = $00;`	Full speed Hub
`USB_PROTOCOL_HUB_HIGHSPEED_SINGLE_TT = $01;`	Hi-speed hub with single Transaction Translator
`USB_PROTOCOL_HUB_HIGHSPEED_MULTI_TT = $02;`	Hi-speed hub with multiple Transaction Translators
Content Security Devices
`USB_PROTOCOL_CONTENT_SECURITY_DEFAULT = $00;`
Audio/Video Devices
`USB_PROTOCOL_AUDIO_VIDEO_DEFAULT = $00;`
Billboard Devices
`USB_PROTOCOL_BILLBOARD_DEFAULT = $00;`
Diagnostic Device
`USB_PROTOCOL_DIAGNOSTIC_DEFAULT = $01;`
Wireless Controller
`USB_PROTOCOL_WIRELESS_CONTROLLER_BLUETOOTH = $01;`	See: http://www.bluetooth.com/
`USB_PROTOCOL_WIRELESS_CONTROLLER_UWB = $02;`	See: Wireless USB Specification in Chapter 8
`USB_PROTOCOL_WIRELESS_CONTROLLER_NDIS = $03;`	See: http://www.microsoft.com/windowsmobile/mobileoperators/default.mspx
`USB_PROTOCOL_WIRELESS_CONTROLLER_BLUETOOTH_AMP = $04;`	See: http://www.bluetooth.com/
`USB_PROTOCOL_WIRELESS_CONTROLLER_USB_HOST = $01;`	Host Wire Adapter Control/Data interface. Definition can be found in the Wireless USB Specification in Chapter 8
`USB_PROTOCOL_WIRELESS_CONTROLLER_USB_DEVICE = $02;`	Device Wire Adapter Control/Data interface. Definition can be found in the Wireless USB Specification in Chapter 8
`USB_PROTOCOL_WIRELESS_CONTROLLER_USB_DEVOCE_ISOC = $03;`	Device Wire Adapter Isochronous interface. Definition can be found in the Wireless USB Specification in Chapter 8
Miscellaneous
`USB_PROTOCOL_MISCELLANEOUS_ACTIVESYNC = $01;`	Active Sync device
`USB_PROTOCOL_MISCELLANEOUS_PALMSYNC = $02;`	Palm Sync
`USB_PROTOCOL_MISCELLANEOUS_IAD = $01;`	Interface Association Descriptor. The usage of this class code triple is defined in the Interface Association Descriptor ECN
`USB_PROTOCOL_MISCELLANEOUS_WAMP = $02;`	Wire Adapter Multifunction Peripheral programming interface. Definition can be found in the Wireless USB Specification in Chapter 8.
`USB_PROTOCOL_MISCELLANEOUS_CBAF = $01;`	Cable Based Association Framework. This is defined in the Association Model addendum to the Wireless USB specification.
`USB_PROTOCOL_MISCELLANEOUS_RNDIS_ETHERNET = $01;`	RNDIS over Ethernet
`USB_PROTOCOL_MISCELLANEOUS_RNDIS_WIFI = $02;`	RNDIS over WiFi
`USB_PROTOCOL_MISCELLANEOUS_RNDIS_WIMAX = $03;`	RNDIS over WiMAX
`USB_PROTOCOL_MISCELLANEOUS_RNDIS_WWAN = $04;`	RNDIS over WWAN
`USB_PROTOCOL_MISCELLANEOUS_RNDIS_IPV4 = $05;`	RNDIS for Raw IPv4
`USB_PROTOCOL_MISCELLANEOUS_RNDIS_IPV6 = $06;`	RNDIS for Raw IPv6
`USB_PROTOCOL_MISCELLANEOUS_RNDIS_GPRS = $07;`	RNDIS for GPRS
`USB_PROTOCOL_MISCELLANEOUS_USB3VISION_CONTROL = $00;`	USB3 Vision Control Interface
`USB_PROTOCOL_MISCELLANEOUS_USB3VISION_EVENT = $01;`	USB3 Vision Event Interface
`USB_PROTOCOL_MISCELLANEOUS_USB3VISION_STREAM = $02;`	USB3 Vision Streaming Interface
Application Specific
`USB_PROTOCOL_APPLICATION_SPECIFIC_DFU_DEFAULT = $01;`	Device Firmware Upgrade
`USB_PROTOCOL_APPLICATION_SPECIFIC_IRDA_DEFAULT = $00;`	IRDA Bridge device
`USB_PROTOCOL_APPLICATION_SPECIFIC_TMC_DEFAULT = $00;`	USB Test and Measurement Device
`USB_PROTOCOL_APPLICATION_SPECIFIC_TMC_488 = $01;`	USB Test and Measurement Device conforming to the USBTMC USB488 Subclass Specification

See Language Identifiers supplement to the USB 2.0 specification
These are the first 10 bits of the 16-bit language identifier

Reserved $00
`USB_LANG_ARABIC = $01;`	Arabic
`USB_LANG_BULGARIAN = $02;`	Bulgarian
`USB_LANG_CATALAN = $03;`	Catalan
`USB_LANG_CHINESE = $04;`	Chinese
`USB_LANG_CZECH = $05;`	Czech
`USB_LANG_DANISH = $06;`	Danish
`USB_LANG_GERMAN = $07;`	German
`USB_LANG_GREEK = $08;`	Greek
`USB_LANG_ENGLISH = $09;`	English
`USB_LANG_SPANISH = $0a;`	Spanish
`USB_LANG_FINNISH = $0b;`	Finnish
`USB_LANG_FRENCH = $0c;`	French
`USB_LANG_HEBREW = $0d;`	Hebrew
`USB_LANG_HUNGARIAN = $0e;`	Hungarian
`USB_LANG_ICELANDIC = $0f;`	Icelandic
`USB_LANG_ITALIAN = $10;`	Italian
`USB_LANG_JAPANESE = $11;`	Japanese
`USB_LANG_KOREAN = $12;`	Korean
`USB_LANG_DUTCH = $13;`	Dutch
`USB_LANG_NORWEGIAN = $14;`	Norwegian
`USB_LANG_POLISH = $15;`	Polish
`USB_LANG_PORTUGUESE = $16;`	Portuguese
`USB_LANG_ROMANIAN = $18;`	Romanian
`USB_LANG_RUSSIAN = $19;`	Russian
`USB_LANG_CROATIAN = $1a;`	Croatian
`USB_LANG_SERBIAN = $1a;`	Serbian
`USB_LANG_SLOVAK = $1b;`	Slovak
`USB_LANG_ALBANIAN = $1c;`	Albanian
`USB_LANG_SWEDISH = $1d;`	Swedish
`USB_LANG_THAI = $1e;`	Thai
`USB_LANG_TURKISH = $1f;`	Turkish
`USB_LANG_URDU = $20;`	Urdu
`USB_LANG_INDONESIAN = $21;`	Indonesian
`USB_LANG_UKRANIAN = $22;`	Ukrainian
`USB_LANG_BELARUSIAN = $23;`	Belarusian
`USB_LANG_SLOVENIAN = $24;`	Slovenian
`USB_LANG_ESTONIAN = $25;`	Estonian
`USB_LANG_LATVIAN = $26;`	Latvian
`USB_LANG_LITHUANIAN = $27;`	Lithuanian
`USB_LANG_FARSI = $29;`	Farsi
`USB_LANG_VIETNAMESE = $2a;`	Vietnamese
`USB_LANG_ARMENIAN = $2b;`	Armenian
`USB_LANG_AZERI = $2c;`	Azeri
`USB_LANG_BASQUE = $2d;`	Basque
`USB_LANG_MACEDONIAN = $2f;`	Macedonian
`USB_LANG_AFRIKAANS = $36;`	Afrikaans
`USB_LANG_GEORGIAN = $37;`	Georgian
`USB_LANG_FAEROESE = $38;`	Faeroese
`USB_LANG_HINDI = $39;`	Hindi
`USB_LANG_MALAY = $3e;`	Malay
`USB_LANG_KAZAK = $3f;`	Kazak
`USB_LANG_SWAHILI = $41;`	Swahili
`USB_LANG_UZBEK = $43;`	Uzbek
`USB_LANG_TATAR = $44;`	Tatar
`USB_LANG_BENGALI = $45;`	Bengali
`USB_LANG_PUNJABI = $46;`	Punjabi
`USB_LANG_GUJARATI = $47;`	Gujarati
`USB_LANG_ORIYA = $48;`	Oriya
`USB_LANG_TAMIL = $49;`	Tamil
`USB_LANG_TELUGU = $4a;`	Telugu
`USB_LANG_KANNADA = $4b;`	Kannada
`USB_LANG_MALAYALAM = $4c;`	Malayalam
`USB_LANG_ASSAMESE = $4d;`	Assamese
`USB_LANG_MARATHI = $4e;`	Marathi
`USB_LANG_SANSKRIT = $4f;`	Sanskrit
`USB_LANG_KONKANI = $57;`	Konkani
`USB_LANG_MANIPURI = $58;`	Manipuri
`USB_LANG_SINDHI = $59;`	Sindhi
`USB_LANG_KASHMIRI = $60;`	Kashmiri
`USB_LANG_NEPALI = $61;`	Nepali
Reserved $62-$fe
`USB_LANG_HID = $ff;`	Reserved for USB HID Class use
Reserved $100-$3ff
`USB_PRIMARY_LANGUAGE_MASK = $3ff;`

See Language Identifiers supplement to the USB 2.0 specification
These are the upper 6 bits of the 16-bit language identifier

Reserved $00-$02
`USB_SUBLANG_ARABIC_SAUDI_ARABIA = $01;`	Arabic (Saudi Arabia)
`USB_SUBLANG_ARABIC_IRAQ = $02;`	Arabic (Iraq)
`USB_SUBLANG_ARABIC_EGYPT = $03;`	Arabic (Egypt)
`USB_SUBLANG_ARABIC_LIBYA = $04;`	Arabic (Libya)
`USB_SUBLANG_ARABIC_ALGERIA = $05;`	Arabic (Algeria)
`USB_SUBLANG_ARABIC_MOROCCO = $06;`	Arabic (Morocco)
`USB_SUBLANG_ARABIC_TUNISIA = $07;`	Arabic (Tunisia)
`USB_SUBLANG_ARABIC_OMAN = $08;`	Arabic (Oman)
`USB_SUBLANG_ARABIC_YEMEN = $09;`	Arabic (Yemen)
`USB_SUBLANG_ARABIC_SYRIA = $10;`	Arabic (Syria)
`USB_SUBLANG_ARABIC_JORDAN = $11;`	Arabic (Jordan)
`USB_SUBLANG_ARABIC_LEBANON = $12;`	Arabic (Lebanon)
`USB_SUBLANG_ARABIC_KUWAIT = $13;`	Arabic (Kuwait)
`USB_SUBLANG_ARABIC_UAE = $14;`	Arabic (U.A.E.)
`USB_SUBLANG_ARABIC_BAHRAIN = $15;`	Arabic (Bahrain)
`USB_SUBLANG_ARABIC_QATAR = $16;`	Arabic (Qatar)
`USB_SUBLANG_AZERI_CYRILLIC = $01;`	Azeri (Cyrillic)
`USB_SUBLANG_AZERI_LATIN = $02;`	Azeri (Latin)
`USB_SUBLANG_CHINESE_TRADITIONAL = $01;`	Chinese (Traditional)
`USB_SUBLANG_CHINESE_SIMPLIFIED = $02;`	Chinese (Simplified)
`USB_SUBLANG_CHINESE_HONGKONG = $03;`	Chinese (Hong Kong SAR, PRC)
`USB_SUBLANG_CHINESE_SINGAPORE = $04;`	Chinese (Singapore)
`USB_SUBLANG_CHINESE_MACAU = $05;`	Chinese (Macau SAR)
`USB_SUBLANG_DUTCH = $01;`	Dutch
`USB_SUBLANG_DUTCH_BELGIAN = $02;`	Dutch (Belgian)
`USB_SUBLANG_ENGLISH_US = $01;`	English (US)
`USB_SUBLANG_ENGLISH_UK = $02;`	English (UK)
`USB_SUBLANG_ENGLISH_AUS = $03;`	English (Australian)
`USB_SUBLANG_ENGLISH_CAN = $04;`	English (Canadian)
`USB_SUBLANG_ENGLISH_NZ = $05;`	English (New Zealand)
`USB_SUBLANG_ENGLISH_EIRE = $06;`	English (Ireland)
`USB_SUBLANG_ENGLISH_SOUTH_AFRICA = $07;`	English (South Africa)
`USB_SUBLANG_ENGLISH_JAMAICA = $08;`	English (Jamaica)
`USB_SUBLANG_ENGLISH_CARIBBEAN = $09;`	English (Caribbean)
`USB_SUBLANG_ENGLISH_BELIZE = $0a;`	English (Belize)
`USB_SUBLANG_ENGLISH_TRINIDAD = $0b;`	English (Trinidad)
`USB_SUBLANG_ENGLISH_PHILIPPINES = $0c;`	English (Zimbabwe)
`USB_SUBLANG_ENGLISH_ZIMBABWE = $0d;`	English (Philippines)
`USB_SUBLANG_FRENCH = $01;`	French
`USB_SUBLANG_FRENCH_BELGIAN = $02;`	French (Belgian)
`USB_SUBLANG_FRENCH_CANADIAN = $03;`	French (Canadian)
`USB_SUBLANG_FRENCH_SWISS = $04;`	French (Swiss)
`USB_SUBLANG_FRENCH_LUXEMBOURG = $05;`	French (Luxembourg)
`USB_SUBLANG_FRENCH_MONACO = $06;`	French (Monaco)
`USB_SUBLANG_GERMAN = $01;`	German
`USB_SUBLANG_GERMAN_SWISS = $02;`	German (Swiss)
`USB_SUBLANG_GERMAN_AUSTRIAN = $03;`	German (Austrian)
`USB_SUBLANG_GERMAN_LUXEMBOURG = $04;`	German (Luxembourg)
`USB_SUBLANG_GERMAN_LIECHTENSTEIN = $05;`	German (Liechtenstein)
`USB_SUBLANG_ITALIAN = $01;`	Italian
`USB_SUBLANG_ITALIAN_SWISS = $02;`	Italian (Swiss)
`USB_SUBLANG_KASHMIRI_INDIA = $02;`	Kashmiri (India)
`USB_SUBLANG_KOREAN = $01;`	Korean
`USB_SUBLANG_LITHUANIAN = $01;`	Lithuanian
`USB_SUBLANG_MALAY_MALAYSIA = $01;`	Malay (Malaysia)
`USB_SUBLANG_MALAY_BRUNEI_DARUSSALAM = $02;`	Malay (Brunei Darassalam)
`USB_SUBLANG_NEPALI_INDIA = $02;`	Nepali (India)
`USB_SUBLANG_NORWEGIAN_BOKMAL = $01;`	Norwegian (Bokmal)
`USB_SUBLANG_NORWEGIAN_NYNORSK = $02;`	Norwegian (Nynorsk)
`USB_SUBLANG_PORTUGUESE = $01;`	Portuguese (Brazilian)
`USB_SUBLANG_PORTUGUESE_BRAZILIAN = $02;`	Portuguese
`USB_SUBLANG_SERBIAN_LATIN = $02;`	Serbian (Latin)
`USB_SUBLANG_SERBIAN_CYRILLIC = $03;`	Serbian (Cyrillic)
`USB_SUBLANG_SPANISH = $01;`	Spanish (Castilian)
`USB_SUBLANG_SPANISH_MEXICAN = $02;`	Spanish (Mexican)
`USB_SUBLANG_SPANISH_MODERN = $03;`	Spanish (Modern)
`USB_SUBLANG_SPANISH_GUATEMALA = $04;`	Spanish (Guatemala)
`USB_SUBLANG_SPANISH_COSTA_RICA = $05;`	Spanish (Costa Rica)
`USB_SUBLANG_SPANISH_PANAMA = $06;`	Spanish (Panama)
`USB_SUBLANG_SPANISH_DOMINICAN_REPUBLIC = $07;`	Spanish (Dominican Republic)
`USB_SUBLANG_SPANISH_VENEZUELA = $08;`	Spanish (Venezuela)
`USB_SUBLANG_SPANISH_COLOMBIA = $09;`	Spanish (Colombia)
`USB_SUBLANG_SPANISH_PERU = $0a;`	Spanish (Peru)
`USB_SUBLANG_SPANISH_ARGENTINA = $0b;`	Spanish (Argentina)
`USB_SUBLANG_SPANISH_ECUADOR = $0c;`	Spanish (Ecuador)
`USB_SUBLANG_SPANISH_CHILE = $0d;`	Spanish (Chile)
`USB_SUBLANG_SPANISH_URUGUAY = $0e;`	Spanish (Uruguay)
`USB_SUBLANG_SPANISH_PARAGUAY = $0f;`	Spanish (Paraguay)
`USB_SUBLANG_SPANISH_BOLIVIA = $10;`	Spanish (Bolivia)
`USB_SUBLANG_SPANISH_EL_SALVADOR = $11;`	Spanish (El Salvador)
`USB_SUBLANG_SPANISH_HONDURAS = $12;`	Spanish (Honduras)
`USB_SUBLANG_SPANISH_NICARAGUA = $13;`	Spanish (Nicaragua)
`USB_SUBLANG_SPANISH_PUERTO_RICO = $14;`	Spanish (Puerto Rico)
`USB_SUBLANG_SWEDISH = $01;`	Swedish
`USB_SUBLANG_SWEDISH_FINLAND = $02;`	Swedish (Finland)
`USB_SUBLANG_URDU_PAKISTAN = $01;`	Urdu (Pakistan)
`USB_SUBLANG_URDU_INDIA = $02;`	Urdu (India)
`USB_SUBLANG_UZBEK_LATIN = $01;`	Uzbek (Latin)
`USB_SUBLANG_UZBEK_CYRILLIC = $02;`	Uzbek (Cyrillic)
`USB_SUBLANG_HID_USAGE_DATA_DESCRIPTOR = $01;`	HID (Usage Data Descriptor)
`USB_SUBLANG_HID_VENDOR_DEFINED_1 = $3c;`	HID (Vendor Defined 1)
`USB_SUBLANG_HID_VENDOR_DEFINED_2 = $3d;`	HID (Vendor Defined 2)
`USB_SUBLANG_HID_VENDOR_DEFINED_3 = $3e;`	HID (Vendor Defined 3)
`USB_SUBLANG_HID_VENDOR_DEFINED_4 = $3f;`	HID (Vendor Defined 4)

See Language Identifiers supplement to the USB 2.0 specification

`USB_LANGID_US_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_US shl 10));`	English (US)
`USB_LANGID_UK_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_UK shl 10));`	English (UK)
`USB_LANGID_AUS_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_AUS shl 10));`	English (Australian)
`USB_LANGID_CAN_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_CAN shl 10));`	English (Canadian)
`USB_LANGID_NZ_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_NZ shl 10));`	English (New Zealand)
`USB_LANGID_EIRE_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_EIRE shl 10));`	English (Ireland)
`USB_LANGID_SOUTH_AFRICA_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_SOUTH_AFRICA shl 10));`	English (South Africa)
`USB_LANGID_JAMAICA_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_JAMAICA shl 10));`	English (Jamaica)
`USB_LANGID_CARIBBEAN_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_CARIBBEAN shl 10));`	English (Caribbean)
`USB_LANGID_BELIZE_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_BELIZE shl 10));`	English (Belize)
`USB_LANGID_TRINIDAD_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_TRINIDAD shl 10));`	English (Trinidad)
`USB_LANGID_PHILIPPINES_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_PHILIPPINES shl 10));`	English (Philippines)
`USB_LANGID_ZIMBABWE_ENGLISH = (USB_LANG_ENGLISH or (USB_SUBLANG_ENGLISH_ZIMBABWE shl 10));`	English (Zimbabwe)

`USB_LANGID_USAGE_HID = (USB_LANG_HID or (USB_SUBLANG_HID_USAGE_DATA_DESCRIPTOR shl 10));`
`USB_LANGID_VENDOR1_HID = (USB_LANG_HID or (USB_SUBLANG_HID_VENDOR_DEFINED_1 shl 10));`
`USB_LANGID_VENDOR2_HID = (USB_LANG_HID or (USB_SUBLANG_HID_VENDOR_DEFINED_2 shl 10));`
`USB_LANGID_VENDOR3_HID = (USB_LANG_HID or (USB_SUBLANG_HID_VENDOR_DEFINED_3 shl 10));`
`USB_LANGID_VENDOR4_HID = (USB_LANG_HID or (USB_SUBLANG_HID_VENDOR_DEFINED_4 shl 10));`

`USB_TREE_SPACES_PER_LEVEL = 6;`
`USB_TREE_LINES_PER_PORT = 2;`