Added in API level 12

Summary: Constants | Ctors | Inherited Methods

UsbConstants

Kotlin |Java

public final class UsbConstants
extends Object

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

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()`

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Constants

USB_CLASS_APP_SPEC

Added in API level 12

public static final int USB_CLASS_APP_SPEC

Application specific USB class.

Constant Value: 254 (0x000000fe)

USB_CLASS_AUDIO

Added in API level 12

public static final int USB_CLASS_AUDIO

USB class for audio devices.

Constant Value: 1 (0x00000001)

USB_CLASS_CDC_DATA

Added in API level 12

public static final int USB_CLASS_CDC_DATA

USB class for CDC devices (communications device class).

Constant Value: 10 (0x0000000a)

USB_CLASS_COMM

Added in API level 12

public static final int USB_CLASS_COMM

USB class for communication devices.

Constant Value: 2 (0x00000002)

USB_CLASS_CONTENT_SEC

Added in API level 12

public static final int USB_CLASS_CONTENT_SEC

USB class for content security devices.

Constant Value: 13 (0x0000000d)

USB_CLASS_CSCID

Added in API level 12

public static final int USB_CLASS_CSCID

USB class for content smart card devices.

Constant Value: 11 (0x0000000b)

USB_CLASS_HID

Added in API level 12

public static final int USB_CLASS_HID

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

Constant Value: 3 (0x00000003)

USB_CLASS_HUB

Added in API level 12

public static final int USB_CLASS_HUB

USB class for USB hubs.

Constant Value: 9 (0x00000009)

USB_CLASS_MASS_STORAGE

Added in API level 12

public static final int USB_CLASS_MASS_STORAGE

USB class for mass storage devices.

Constant Value: 8 (0x00000008)

USB_CLASS_MISC

Added in API level 12

public static final int USB_CLASS_MISC

USB class for wireless miscellaneous devices.

Constant Value: 239 (0x000000ef)

USB_CLASS_PER_INTERFACE

Added in API level 12

public static final int USB_CLASS_PER_INTERFACE

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

Constant Value: 0 (0x00000000)

USB_CLASS_PHYSICA

Added in API level 12

public static final int USB_CLASS_PHYSICA

USB class for physical devices.

Constant Value: 5 (0x00000005)

USB_CLASS_PRINTER

Added in API level 12

public static final int USB_CLASS_PRINTER

USB class for printers.

Constant Value: 7 (0x00000007)

USB_CLASS_STILL_IMAGE

Added in API level 12

public static final int USB_CLASS_STILL_IMAGE

USB class for still image devices (digital cameras).

Constant Value: 6 (0x00000006)

USB_CLASS_VENDOR_SPEC

Added in API level 12

public static final int USB_CLASS_VENDOR_SPEC

Vendor specific USB class.

Constant Value: 255 (0x000000ff)

USB_CLASS_VIDEO

Added in API level 12

public static final int USB_CLASS_VIDEO

USB class for video devices.

Constant Value: 14 (0x0000000e)

USB_CLASS_WIRELESS_CONTROLLER

Added in API level 12

public static final int USB_CLASS_WIRELESS_CONTROLLER

USB class for wireless controller devices.

Constant Value: 224 (0x000000e0)

USB_DIR_IN

Added in API level 12

public static final int USB_DIR_IN

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

See also:

UsbEndpoint.getDirection()

Constant Value: 128 (0x00000080)

USB_DIR_OUT

Added in API level 12

public static final int USB_DIR_OUT

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

See also:

UsbEndpoint.getDirection()

Constant Value: 0 (0x00000000)

USB_ENDPOINT_DIR_MASK

Added in API level 12

public static final int USB_ENDPOINT_DIR_MASK

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

See also:

Constant Value: 128 (0x00000080)

USB_ENDPOINT_NUMBER_MASK

Added in API level 12

public static final int USB_ENDPOINT_NUMBER_MASK

Bitmask used for extracting the UsbEndpoint number its address field.

See also:

Constant Value: 15 (0x0000000f)

USB_ENDPOINT_XFERTYPE_MASK

Added in API level 12

public static final int USB_ENDPOINT_XFERTYPE_MASK

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

See also:

Constant Value: 3 (0x00000003)

USB_ENDPOINT_XFER_BULK

Added in API level 12

public static final int USB_ENDPOINT_XFER_BULK

Bulk endpoint type

See also:

UsbEndpoint.getType()

Constant Value: 2 (0x00000002)

USB_ENDPOINT_XFER_CONTROL

Added in API level 12

public static final int USB_ENDPOINT_XFER_CONTROL

Control endpoint type (endpoint zero)

See also:

UsbEndpoint.getType()

Constant Value: 0 (0x00000000)

USB_ENDPOINT_XFER_INT

Added in API level 12

public static final int USB_ENDPOINT_XFER_INT

Interrupt endpoint type

See also:

UsbEndpoint.getType()

Constant Value: 3 (0x00000003)

USB_ENDPOINT_XFER_ISOC

Added in API level 12

public static final int USB_ENDPOINT_XFER_ISOC

Isochronous endpoint type (currently not supported)

See also:

UsbEndpoint.getType()

Constant Value: 1 (0x00000001)

USB_INTERFACE_SUBCLASS_BOOT

Added in API level 12

public static final int USB_INTERFACE_SUBCLASS_BOOT

Boot subclass for HID devices.

Constant Value: 1 (0x00000001)

USB_SUBCLASS_VENDOR_SPEC

Added in API level 12

public static final int USB_SUBCLASS_VENDOR_SPEC

Vendor specific USB subclass.

Constant Value: 255 (0x000000ff)

USB_TYPE_CLASS

Added in API level 12

public static final int USB_TYPE_CLASS

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

Constant Value: 32 (0x00000020)

USB_TYPE_MASK

Added in API level 12

public static final int USB_TYPE_MASK

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

Constant Value: 96 (0x00000060)

USB_TYPE_RESERVED

Added in API level 12

public static final int USB_TYPE_RESERVED

Reserved endpoint zero control request type (currently unused).

Constant Value: 96 (0x00000060)

USB_TYPE_STANDARD

Added in API level 12

public static final int USB_TYPE_STANDARD

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

Constant Value: 0 (0x00000000)

USB_TYPE_VENDOR

Added in API level 12

public static final int USB_TYPE_VENDOR

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

Constant Value: 64 (0x00000040)

Public constructors

UsbConstants

public UsbConstants ()