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Added in API level 12

Summary: Inherited Constants | Fields | Methods | Inherited Methods | [Expand All]

UsbInterface

public class UsbInterface
extends Object implements Parcelable

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

A class representing an interface on a UsbDevice. USB devices can have one or more interfaces, each one providing a different piece of functionality, separate from the other interfaces. An interface will have one or more UsbEndpoints, which are the channels by which the host transfers data with the device.

Developer Guides

For more information about communicating with USB hardware, read the USB developer guide.

Summary

Inherited constants

From interface


    android.os.Parcelable

Fields
`public static final Creator<UsbInterface>`	`CREATOR`

Public methods
`int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`int`	`getAlternateSetting()` Returns the interface's bAlternateSetting field.
`UsbEndpoint`	`getEndpoint(int index)` Returns the `UsbEndpoint` at the given index.
`int`	`getEndpointCount()` Returns the number of `UsbEndpoint`s this interface contains.
`int`	`getId()` Returns the interface's bInterfaceNumber field.
`int`	`getInterfaceClass()` Returns the interface's class field.
`int`	`getInterfaceProtocol()` Returns the interface's protocol field.
`int`	`getInterfaceSubclass()` Returns the interface's subclass field.
`String`	`getName()` Returns the interface's name.
`String`	`toString()` Returns a string representation of the object.
`void`	`writeToParcel(Parcel parcel, int flags)` Flatten this object in to a Parcel.

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 millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

From interface


  
    android.os.Parcelable

Fields

CREATOR

Added in API level 12

Creator<UsbInterface> CREATOR

Public methods

describeContents

Added in API level 12

int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
`int`	a bitmask indicating the set of special object types marshaled by this Parcelable object instance.

getAlternateSetting

Added in API level 21

int getAlternateSetting ()

Returns the interface's bAlternateSetting field. This is an integer that along with the ID uniquely identifies the interface on the device. setInterface(UsbInterface) can be used to switch between two interfaces with the same ID but different alternate setting.

Returns
`int`	the interface's alternate setting

getEndpoint

Added in API level 12

UsbEndpoint getEndpoint (int index)

Returns the UsbEndpoint at the given index.

Parameters
`index`	`int`

Returns
`UsbEndpoint`	the endpoint

getEndpointCount

Added in API level 12

int getEndpointCount ()

Returns the number of UsbEndpoints this interface contains.

Returns
`int`	the number of endpoints

getId

Added in API level 12

int getId ()

Returns the interface's bInterfaceNumber field. This is an integer that along with the alternate setting uniquely identifies the interface on the device.

Returns
`int`	the interface's ID

getInterfaceClass

Added in API level 12

int getInterfaceClass ()

Returns the interface's class field. Some useful constants for USB classes can be found in UsbConstants

Returns
`int`	the interface's class

getInterfaceProtocol

Added in API level 12

int getInterfaceProtocol ()

Returns the interface's protocol field.

Returns
`int`	the interface's protocol

getInterfaceSubclass

Added in API level 12

int getInterfaceSubclass ()

Returns the interface's subclass field.

Returns
`int`	the interface's subclass

getName

Added in API level 21

String getName ()

Returns the interface's name.

Returns
`String`	the interface's name

toString

Added in API level 12

String toString ()

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())

Returns
`String`	a string representation of the object.

writeToParcel

Added in API level 12

void writeToParcel (Parcel parcel, 
                int flags)

Flatten this object in to a Parcel.

Parameters
`parcel`	`Parcel`: The Parcel in which the object should be written.
`flags`	`int`: Additional flags about how the object should be written. May be 0 or `PARCELABLE_WRITE_RETURN_VALUE`.