# UsbConfiguration

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  
Summary:[Inherited Constants](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#inhconstants)\|[Fields](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#lfields)\|[Methods](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#inhmethods)  

# UsbConfiguration

*** ** * ** ***

[Kotlin](https://developer.android.com/reference/kotlin/android/hardware/usb/UsbConfiguration "View this page in Kotlin")\|Java

`
public


class
UsbConfiguration
`  
`

extends `[Object](https://developer.android.com/reference/java/lang/Object)`


``


implements

`[Parcelable](https://developer.android.com/reference/android/os/Parcelable)`


`

|---|---------------------------------------|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.hardware.usb.UsbConfiguration |

<br />

*** ** * ** ***

A class representing a configuration on a[UsbDevice](https://developer.android.com/reference/android/hardware/usb/UsbDevice). A USB configuration 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[UsbEndpoint](https://developer.android.com/reference/android/hardware/usb/UsbEndpoint)s, 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](https://developer.android.com/guide/topics/usb)developer guide.

<br />

## Summary

|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                ### Inherited constants                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| From interface[android.os.Parcelable](https://developer.android.com/reference/android/os/Parcelable) |-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `int` | [CONTENTS_FILE_DESCRIPTOR](https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR) Descriptor bit used with[describeContents()](https://developer.android.com/reference/android/os/Parcelable#describeContents()): indicates that the Parcelable object's flattened representation includes a file descriptor.                                                                                                                                            | | `int` | [PARCELABLE_WRITE_RETURN_VALUE](https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE) Flag for use with[writeToParcel(Parcel, int)](https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)): the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`". | |

|                                                                                                                                                       ### Fields                                                                                                                                                        ||
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------|
| ` public static final `[Creator](https://developer.android.com/reference/android/os/Parcelable.Creator)`<`[UsbConfiguration](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration)`>` | [CREATOR](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#CREATOR) <br /> |

|                                                                                                                                                                            ### Public methods                                                                                                                                                                             ||
|----------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` int`                                                                                       | ` `[describeContents](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#describeContents())`() ` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.                                        |
| ` int`                                                                                       | ` `[getId](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#getId())`() ` Returns the configuration's ID field.                                                                                                                                |
| ` `[UsbInterface](https://developer.android.com/reference/android/hardware/usb/UsbInterface) | ` `[getInterface](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#getInterface(int))`(int index) ` Returns the[UsbInterface](https://developer.android.com/reference/android/hardware/usb/UsbInterface)at the given index.                    |
| ` int`                                                                                       | ` `[getInterfaceCount](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#getInterfaceCount())`() ` Returns the number of[UsbInterface](https://developer.android.com/reference/android/hardware/usb/UsbInterface)s this configuration contains. |
| ` int`                                                                                       | ` `[getMaxPower](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#getMaxPower())`() ` Returns the configuration's max power consumption, in milliamps.                                                                                         |
| ` `[String](https://developer.android.com/reference/java/lang/String)                        | ` `[getName](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#getName())`() ` Returns the configuration's name.                                                                                                                                |
| ` boolean`                                                                                   | ` `[isRemoteWakeup](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#isRemoteWakeup())`() ` Returns the remote-wakeup attribute value configuration's attributes field.                                                                        |
| ` boolean`                                                                                   | ` `[isSelfPowered](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#isSelfPowered())`() ` Returns the self-powered attribute value configuration's attributes field.                                                                           |
| ` `[String](https://developer.android.com/reference/java/lang/String)                        | ` `[toString](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#toString())`() ` Returns a string representation of the object.                                                                                                                 |
| ` void`                                                                                      | ` `[writeToParcel](https://developer.android.com/reference/android/hardware/usb/UsbConfiguration#writeToParcel(android.os.Parcel,%20int))`(`[Parcel](https://developer.android.com/reference/android/os/Parcel)` parcel, int flags) ` Flatten this object in to a Parcel.   |

| ### Inherited methods |
|-----------------------|---|
| From class` `[java.lang.Object](https://developer.android.com/reference/java/lang/Object)` ` |--------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](https://developer.android.com/reference/java/lang/Object)          | ` `[clone](https://developer.android.com/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object.                                                                                                                                                      | | ` boolean`                                                                     | ` `[equals](https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](https://developer.android.com/reference/java/lang/Object)` obj) ` Indicates whether some other object is "equal to" this one.                                           | | ` void`                                                                        | ` `[finalize](https://developer.android.com/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.                                                          | | ` final `[Class](https://developer.android.com/reference/java/lang/Class)`<?>` | ` `[getClass](https://developer.android.com/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this`Object`.                                                                                                                                                | | ` int`                                                                         | ` `[hashCode](https://developer.android.com/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object.                                                                                                                                                 | | ` final void`                                                                  | ` `[notify](https://developer.android.com/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor.                                                                                                                            | | ` final void`                                                                  | ` `[notifyAll](https://developer.android.com/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor.                                                                                                                         | | ` `[String](https://developer.android.com/reference/java/lang/String)          | ` `[toString](https://developer.android.com/reference/java/lang/Object#toString())`() ` Returns a string representation of the object.                                                                                                                                            | | ` final void`                                                                  | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long,%20int))`(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](https://developer.android.com/reference/java/lang/Object#wait(long))`(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](https://developer.android.com/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being*notified* or*interrupted*.                                                                                             | ||
| From interface` `[android.os.Parcelable](https://developer.android.com/reference/android/os/Parcelable)` ` |------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` abstract int`  | ` `[describeContents](https://developer.android.com/reference/android/os/Parcelable#describeContents())`() ` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.                                    | | ` abstract void` | ` `[writeToParcel](https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int))`(`[Parcel](https://developer.android.com/reference/android/os/Parcel)` dest, int flags) ` Flatten this object in to a Parcel. | ||

## Fields

### CREATOR

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public static final Creator<UsbConfiguration> CREATOR
```

<br />

<br />

## Public methods

### describeContents

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public 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(android.os.Parcel, int)](https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)), the return value of this method must include the[CONTENTS_FILE_DESCRIPTOR](https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR)bit.

<br />

|                                                                                                                         Returns                                                                                                                         ||
|-------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `int` | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either`0`or[CONTENTS_FILE_DESCRIPTOR](https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR) <br /> |

### getId

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public int getId ()
```

Returns the configuration's ID field. This is an integer that uniquely identifies the configuration on the device.

<br />

|               Returns                ||
|-------|-------------------------------|
| `int` | the configuration's ID <br /> |

### getInterface

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public UsbInterface getInterface (int index)
```

Returns the[UsbInterface](https://developer.android.com/reference/android/hardware/usb/UsbInterface)at the given index.

<br />

|      Parameters       ||
|---------|--------------|
| `index` | `int` <br /> |

|                                                                   Returns                                                                   ||
|-------------------------------------------------------------------------------------------|--------------------------------------------------|
| [UsbInterface](https://developer.android.com/reference/android/hardware/usb/UsbInterface) | the interface This value cannot be`null`. <br /> |

### getInterfaceCount

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public int getInterfaceCount ()
```

Returns the number of[UsbInterface](https://developer.android.com/reference/android/hardware/usb/UsbInterface)s this configuration contains.

<br />

|                Returns                ||
|-------|--------------------------------|
| `int` | the number of endpoints <br /> |

### getMaxPower

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public int getMaxPower ()
```

Returns the configuration's max power consumption, in milliamps.

<br />

|                   Returns                   ||
|-------|--------------------------------------|
| `int` | the configuration's max power <br /> |

### getName

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public String getName ()
```

Returns the configuration's name.

<br />

|                                                                    Returns                                                                     ||
|--------------------------------------------------------------------|----------------------------------------------------------------------------|
| [String](https://developer.android.com/reference/java/lang/String) | the configuration's name, or`null`if the property could not be read <br /> |

### isRemoteWakeup

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public boolean isRemoteWakeup ()
```

Returns the remote-wakeup attribute value configuration's attributes field. This attributes that the device may signal the host to wake from suspend.

<br />

|                            Returns                            ||
|-----------|----------------------------------------------------|
| `boolean` | the configuration's remote-wakeup attribute <br /> |

### isSelfPowered

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public boolean isSelfPowered ()
```

Returns the self-powered attribute value configuration's attributes field. This attribute indicates that the device has a power source other than the USB connection.

<br />

|                           Returns                            ||
|-----------|---------------------------------------------------|
| `boolean` | the configuration's self-powered attribute <br /> |

### toString

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public String toString ()
```

Returns a string representation of the object.

<br />

|                                                      Returns                                                      ||
|--------------------------------------------------------------------|-----------------------------------------------|
| [String](https://developer.android.com/reference/java/lang/String) | a string representation of the object. <br /> |

### writeToParcel

Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)  

```
public void writeToParcel (Parcel parcel, 
                int flags)
```

Flatten this object in to a Parcel.

<br />

|                                                                                                                                                                                                                                Parameters                                                                                                                                                                                                                                ||
|----------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `parcel` | `Parcel`: The Parcel in which the object should be written. This value cannot be`null`. <br />                                                                                                                                                                                                                                                                                                                                                                 |
| `flags`  | `int`: Additional flags about how the object should be written. May be 0 or[Parcelable.PARCELABLE_WRITE_RETURN_VALUE](https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE). Value is either`0`or a combination of[Parcelable.PARCELABLE_WRITE_RETURN_VALUE](https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE), and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES <br /> |