Android APIs
public final class

UsbConstants

extends Object
java.lang.Object
   ↳ android.hardware.usb.UsbConstants

Class Overview

Contains constants for the USB protocol. These constants correspond to definitions in linux/usb/ch9.h in the linux kernel.

Summary

Constants
int USB_CLASS_APP_SPEC Application specific USB class.
int USB_CLASS_AUDIO USB class for audio devices.
int USB_CLASS_CDC_DATA USB class for CDC devices (communications device class).
int USB_CLASS_COMM USB class for communication devices.
int USB_CLASS_CONTENT_SEC USB class for content security devices.
int USB_CLASS_CSCID USB class for content smart card devices.
int USB_CLASS_HID USB class for human interface devices (for example, mice and keyboards).
int USB_CLASS_HUB USB class for USB hubs.
int USB_CLASS_MASS_STORAGE USB class for mass storage devices.
int USB_CLASS_MISC USB class for wireless miscellaneous devices.
int USB_CLASS_PER_INTERFACE USB class indicating that the class is determined on a per-interface basis.
int USB_CLASS_PHYSICA USB class for physical devices.
int USB_CLASS_PRINTER USB class for printers.
int USB_CLASS_STILL_IMAGE USB class for still image devices (digital cameras).
int USB_CLASS_VENDOR_SPEC Vendor specific USB class.
int USB_CLASS_VIDEO USB class for video devices.
int USB_CLASS_WIRELESS_CONTROLLER USB class for wireless controller devices.
int USB_DIR_IN Used to signify direction of data for a UsbEndpoint is IN (device to host)
int USB_DIR_OUT Used to signify direction of data for a UsbEndpoint is OUT (host to device)
int USB_ENDPOINT_DIR_MASK Bitmask used for extracting the UsbEndpoint direction from its address field.
int USB_ENDPOINT_NUMBER_MASK Bitmask used for extracting the UsbEndpoint number its address field.
int USB_ENDPOINT_XFERTYPE_MASK Bitmask used for extracting the UsbEndpoint type from its address field.
int USB_ENDPOINT_XFER_BULK Bulk endpoint type
int USB_ENDPOINT_XFER_CONTROL Control endpoint type (endpoint zero)
int USB_ENDPOINT_XFER_INT Interrupt endpoint type
int USB_ENDPOINT_XFER_ISOC Isochronous endpoint type (currently not supported)
int USB_INTERFACE_SUBCLASS_BOOT Boot subclass for HID devices.
int USB_SUBCLASS_VENDOR_SPEC Vendor specific USB subclass.
int USB_TYPE_CLASS Used to specify that an endpoint zero control request is a class specific request.
int USB_TYPE_MASK Bitmask used for encoding the request type for a control request on endpoint zero.
int USB_TYPE_RESERVED Reserved endpoint zero control request type (currently unused).
int USB_TYPE_STANDARD Used to specify that an endpoint zero control request is a standard request.
int USB_TYPE_VENDOR Used to specify that an endpoint zero control request is a vendor specific request.
Public Constructors
UsbConstants()
[Expand]
Inherited Methods
From class java.lang.Object

Constants

public static final int USB_CLASS_APP_SPEC

Added in API level 12

Application specific USB class.

Constant Value: 254 (0x000000fe)

public static final int USB_CLASS_AUDIO

Added in API level 12

USB class for audio devices.

Constant Value: 1 (0x00000001)

public static final int USB_CLASS_CDC_DATA

Added in API level 12

USB class for CDC devices (communications device class).

Constant Value: 10 (0x0000000a)

public static final int USB_CLASS_COMM

Added in API level 12

USB class for communication devices.

Constant Value: 2 (0x00000002)

public static final int USB_CLASS_CONTENT_SEC

Added in API level 12

USB class for content security devices.

Constant Value: 13 (0x0000000d)

public static final int USB_CLASS_CSCID

Added in API level 12

USB class for content smart card devices.

Constant Value: 11 (0x0000000b)

public static final int USB_CLASS_HID

Added in API level 12

USB class for human interface devices (for example, mice and keyboards).

Constant Value: 3 (0x00000003)

public static final int USB_CLASS_HUB

Added in API level 12

USB class for USB hubs.

Constant Value: 9 (0x00000009)

public static final int USB_CLASS_MASS_STORAGE

Added in API level 12

USB class for mass storage devices.

Constant Value: 8 (0x00000008)

public static final int USB_CLASS_MISC

Added in API level 12

USB class for wireless miscellaneous devices.

Constant Value: 239 (0x000000ef)

public static final int USB_CLASS_PER_INTERFACE

Added in API level 12

USB class indicating that the class is determined on a per-interface basis.

Constant Value: 0 (0x00000000)

public static final int USB_CLASS_PHYSICA

Added in API level 12

USB class for physical devices.

Constant Value: 5 (0x00000005)

public static final int USB_CLASS_PRINTER

Added in API level 12

USB class for printers.

Constant Value: 7 (0x00000007)

public static final int USB_CLASS_STILL_IMAGE

Added in API level 12

USB class for still image devices (digital cameras).

Constant Value: 6 (0x00000006)

public static final int USB_CLASS_VENDOR_SPEC

Added in API level 12

Vendor specific USB class.

Constant Value: 255 (0x000000ff)

public static final int USB_CLASS_VIDEO

Added in API level 12

USB class for video devices.

Constant Value: 14 (0x0000000e)

public static final int USB_CLASS_WIRELESS_CONTROLLER

Added in API level 12

USB class for wireless controller devices.

Constant Value: 224 (0x000000e0)

public static final int USB_DIR_IN

Added in API level 12

Used to signify direction of data for a UsbEndpoint is IN (device to host)

See also:

Constant Value: 128 (0x00000080)

public static final int USB_DIR_OUT

Added in API level 12

Used to signify direction of data for a UsbEndpoint is OUT (host to device)

See also:

Constant Value: 0 (0x00000000)

public static final int USB_ENDPOINT_DIR_MASK

Added in API level 12

Bitmask used for extracting the UsbEndpoint direction from its address field.

Constant Value: 128 (0x00000080)

public static final int USB_ENDPOINT_NUMBER_MASK

Added in API level 12

Bitmask used for extracting the UsbEndpoint number its address field.

Constant Value: 15 (0x0000000f)

public static final int USB_ENDPOINT_XFERTYPE_MASK

Added in API level 12

Bitmask used for extracting the UsbEndpoint type from its address field.

Constant Value: 3 (0x00000003)

public static final int USB_ENDPOINT_XFER_BULK

Added in API level 12

Bulk endpoint type

See also:

Constant Value: 2 (0x00000002)

public static final int USB_ENDPOINT_XFER_CONTROL

Added in API level 12

Control endpoint type (endpoint zero)

See also:

Constant Value: 0 (0x00000000)

public static final int USB_ENDPOINT_XFER_INT

Added in API level 12

Interrupt endpoint type

See also:

Constant Value: 3 (0x00000003)

public static final int USB_ENDPOINT_XFER_ISOC

Added in API level 12

Isochronous endpoint type (currently not supported)

See also:

Constant Value: 1 (0x00000001)

public static final int USB_INTERFACE_SUBCLASS_BOOT

Added in API level 12

Boot subclass for HID devices.

Constant Value: 1 (0x00000001)

public static final int USB_SUBCLASS_VENDOR_SPEC

Added in API level 12

Vendor specific USB subclass.

Constant Value: 255 (0x000000ff)

public static final int USB_TYPE_CLASS

Added in API level 12

Used to specify that an endpoint zero control request is a class specific request.

Constant Value: 32 (0x00000020)

public static final int USB_TYPE_MASK

Added in API level 12

Bitmask used for encoding the request type for a control request on endpoint zero.

Constant Value: 96 (0x00000060)

public static final int USB_TYPE_RESERVED

Added in API level 12

Reserved endpoint zero control request type (currently unused).

Constant Value: 96 (0x00000060)

public static final int USB_TYPE_STANDARD

Added in API level 12

Used to specify that an endpoint zero control request is a standard request.

Constant Value: 0 (0x00000000)

public static final int USB_TYPE_VENDOR

Added in API level 12

Used to specify that an endpoint zero control request is a vendor specific request.

Constant Value: 64 (0x00000040)

Public Constructors

public UsbConstants ()

Added in API level 12