Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Nested Classes](https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#nestedclasses) \| [Constants](https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#constants) \| [Inherited Constants](https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#inhconstants) \| [Fields](https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#lfields) \| [Methods](https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#inhmethods)

# MidiDeviceInfo

*** ** * ** ***

` public final class MidiDeviceInfo `   
` extends https://developer.android.com/reference/java/lang/Object ` ` implements https://developer.android.com/reference/android/os/Parcelable `

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.media.midi.MidiDeviceInfo |

<br />

*** ** * ** ***

This class contains information to describe a MIDI device. For now we only have information that can be retrieved easily for USB devices, but we will probably expand this in the future. This class is just an immutable object to encapsulate the MIDI device description. Use the MidiDevice class to actually communicate with devices.

## Summary

| ### Nested classes ||
|---|---|
| ` class` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo.PortInfo` Contains information about an input or output port. |

| ### Constants ||
|---|---|
| `https://developer.android.com/reference/java/lang/String` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROPERTY_BLUETOOTH_DEVICE` Bundle key for the device's corresponding Bluetooth device. |
| `https://developer.android.com/reference/java/lang/String` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROPERTY_MANUFACTURER` Bundle key for the device's manufacturer name property. |
| `https://developer.android.com/reference/java/lang/String` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROPERTY_NAME` Bundle key for the device's user visible name property. |
| `https://developer.android.com/reference/java/lang/String` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROPERTY_PRODUCT` Bundle key for the device's product name property. |
| `https://developer.android.com/reference/java/lang/String` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROPERTY_SERIAL_NUMBER` Bundle key for the device's serial number property. |
| `https://developer.android.com/reference/java/lang/String` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROPERTY_USB_DEVICE` Bundle key for the device's corresponding USB device. |
| `https://developer.android.com/reference/java/lang/String` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROPERTY_VERSION` Bundle key for the device's version property. |
| `int` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_1_0_UP_TO_128_BITS` Constant representing a default protocol with Universal MIDI Packets (UMP). |
| `int` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_1_0_UP_TO_128_BITS_AND_JRTS` Constant representing a default protocol with Universal MIDI Packets (UMP). |
| `int` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_1_0_UP_TO_64_BITS` Constant representing a default protocol with Universal MIDI Packets (UMP). |
| `int` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_1_0_UP_TO_64_BITS_AND_JRTS` Constant representing a default protocol with Universal MIDI Packets (UMP). |
| `int` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_2_0` Constant representing a default protocol with Universal MIDI Packets (UMP). |
| `int` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_2_0_AND_JRTS` Constant representing a default protocol with Universal MIDI Packets (UMP). |
| `int` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_USE_MIDI_CI` Constant representing a default protocol with Universal MIDI Packets (UMP). |
| `int` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UNKNOWN` Constant representing a device with an unknown default protocol. |
| `int` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#TYPE_BLUETOOTH` Constant representing Bluetooth MIDI devices for `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getType()` |
| `int` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#TYPE_USB` Constant representing USB MIDI devices for `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getType()` |
| `int` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#TYPE_VIRTUAL` Constant representing virtual (software based) MIDI devices for `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getType()` |

### Inherited constants

From interface `https://developer.android.com/reference/android/os/Parcelable` `int` `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR`

Descriptor bit used with `https://developer.android.com/reference/android/os/Parcelable#describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int` `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`

Flag for use with `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 https://developer.android.com/reference/android/os/Parcelable.Creator<https://developer.android.com/reference/android/media/midi/MidiDeviceInfo>` | `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#CREATOR` <br /> |

| ### Public methods ||
|---|---|
| ` int` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#describeContents()() ` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
| ` boolean` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object o) ` Indicates whether some other object is "equal to" this one. |
| ` int` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getDefaultProtocol()() ` Returns the default protocol. |
| ` int` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getId()() ` Returns the ID of the device. |
| ` int` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getInputPortCount()() ` Returns the device's number of input ports. |
| ` int` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getOutputPortCount()() ` Returns the device's number of output ports. |
| ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo.PortInfo` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getPorts()() ` Returns information about the device's ports. |
| ` https://developer.android.com/reference/android/os/Bundle` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getProperties()() ` Returns the `https://developer.android.com/reference/android/os/Bundle` containing the device's properties. |
| ` int` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getType()() ` Returns the type of the device. |
| ` int` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#hashCode()() ` Returns a hash code value for the object. |
| ` boolean` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#isPrivate()() ` Returns true if the device is private. |
| ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#toString()() ` Returns a string representation of the object. |
| ` void` | ` https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel parcel, int flags) ` Flatten this object in to a Parcel. |

### Inherited methods

From class ` https://developer.android.com/reference/java/lang/Object ` ` https://developer.android.com/reference/java/lang/Object` ` https://developer.android.com/reference/java/lang/Object#clone()() `

Creates and returns a copy of this object.
` boolean` ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) `

Indicates whether some other object is "equal to" this one.
` void` ` 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 https://developer.android.com/reference/java/lang/Class<?>` ` https://developer.android.com/reference/java/lang/Object#getClass()() `

Returns the runtime class of this `Object`.
` int` ` https://developer.android.com/reference/java/lang/Object#hashCode()() `

Returns a hash code value for the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#notify()() `

Wakes up a single thread that is waiting on this object's monitor.
` final void` ` https://developer.android.com/reference/java/lang/Object#notifyAll()() `

Wakes up all threads that are waiting on this object's monitor.
` https://developer.android.com/reference/java/lang/String` ` https://developer.android.com/reference/java/lang/Object#toString()() `

Returns a string representation of the object.
` final void` ` 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` ` 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` ` 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 ` https://developer.android.com/reference/android/os/Parcelable ` ` abstract int` ` 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` ` https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel dest, int flags) `

Flatten this object in to a Parcel.

## Constants

### PROPERTY_BLUETOOTH_DEVICE

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final String PROPERTY_BLUETOOTH_DEVICE
```

Bundle key for the device's corresponding Bluetooth device. The value for this property is of type `https://developer.android.com/reference/android/bluetooth/BluetoothDevice`. Only set for Bluetooth MIDI devices. Used with the `https://developer.android.com/reference/android/os/Bundle` returned by `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getProperties()`

<br />

Constant Value: "bluetooth_device"

### PROPERTY_MANUFACTURER

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final String PROPERTY_MANUFACTURER
```

Bundle key for the device's manufacturer name property. The value for this property is of type `https://developer.android.com/reference/java/lang/String`. Used with the `https://developer.android.com/reference/android/os/Bundle` returned by `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getProperties()`. Matches the USB device manufacturer name string for USB MIDI devices.

<br />

Constant Value: "manufacturer"

### PROPERTY_NAME

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final String PROPERTY_NAME
```

Bundle key for the device's user visible name property. The value for this property is of type `https://developer.android.com/reference/java/lang/String`. Used with the `https://developer.android.com/reference/android/os/Bundle` returned by `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getProperties()`. For USB devices, this is a concatenation of the manufacturer and product names.

<br />

Constant Value: "name"

### PROPERTY_PRODUCT

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final String PROPERTY_PRODUCT
```

Bundle key for the device's product name property. The value for this property is of type `https://developer.android.com/reference/java/lang/String`. Used with the `https://developer.android.com/reference/android/os/Bundle` returned by `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getProperties()` Matches the USB device product name string for USB MIDI devices.

<br />

Constant Value: "product"

### PROPERTY_SERIAL_NUMBER

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final String PROPERTY_SERIAL_NUMBER
```

Bundle key for the device's serial number property. The value for this property is of type `https://developer.android.com/reference/java/lang/String`. Used with the `https://developer.android.com/reference/android/os/Bundle` returned by `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getProperties()` Matches the USB device serial number for USB MIDI devices.

<br />

Constant Value: "serial_number"

### PROPERTY_USB_DEVICE

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final String PROPERTY_USB_DEVICE
```

Bundle key for the device's corresponding USB device. The value for this property is of type `https://developer.android.com/reference/android/hardware/usb/UsbDevice`. Only set for USB MIDI devices. Used with the `https://developer.android.com/reference/android/os/Bundle` returned by `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getProperties()`

<br />

Constant Value: "usb_device"

### PROPERTY_VERSION

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final String PROPERTY_VERSION
```

Bundle key for the device's version property. The value for this property is of type `https://developer.android.com/reference/java/lang/String`. Used with the `https://developer.android.com/reference/android/os/Bundle` returned by `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getProperties()` Matches the USB device version number for USB MIDI devices.

<br />

Constant Value: "version"

### PROTOCOL_UMP_MIDI_1_0_UP_TO_128_BITS

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final int PROTOCOL_UMP_MIDI_1_0_UP_TO_128_BITS
```

Constant representing a default protocol with Universal MIDI Packets (UMP). UMP is defined in "Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol" spec. All UMP data should be a multiple of 4 bytes. Use MIDI 1.0 through UMP with packet sizes up to 128 bits. Call `https://developer.android.com/reference/android/media/midi/MidiManager#getDevicesForTransport(int)` with parameter `https://developer.android.com/reference/android/media/midi/MidiManager#TRANSPORT_UNIVERSAL_MIDI_PACKETS` to get devices with this transport.

<br />

**See also:**

- `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getDefaultProtocol()`

Constant Value: 3 (0x00000003)

### PROTOCOL_UMP_MIDI_1_0_UP_TO_128_BITS_AND_JRTS

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final int PROTOCOL_UMP_MIDI_1_0_UP_TO_128_BITS_AND_JRTS
```

Constant representing a default protocol with Universal MIDI Packets (UMP). UMP is defined in "Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol" spec. All UMP data should be a multiple of 4 bytes. Use MIDI 1.0 through UMP with packet sizes up to 128 bits and jitter reduction timestamps. Call `https://developer.android.com/reference/android/media/midi/MidiManager#getDevicesForTransport(int)` with parameter `https://developer.android.com/reference/android/media/midi/MidiManager#TRANSPORT_UNIVERSAL_MIDI_PACKETS` to get devices with this transport.

<br />

**See also:**

- `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getDefaultProtocol()`

Constant Value: 4 (0x00000004)

### PROTOCOL_UMP_MIDI_1_0_UP_TO_64_BITS

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final int PROTOCOL_UMP_MIDI_1_0_UP_TO_64_BITS
```

Constant representing a default protocol with Universal MIDI Packets (UMP). UMP is defined in "Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol" spec. All UMP data should be a multiple of 4 bytes. Use MIDI 1.0 through UMP with packet sizes up to 64 bits. Call `https://developer.android.com/reference/android/media/midi/MidiManager#getDevicesForTransport(int)` with parameter `https://developer.android.com/reference/android/media/midi/MidiManager#TRANSPORT_UNIVERSAL_MIDI_PACKETS` to get devices with this transport.

<br />

**See also:**

- `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getDefaultProtocol()`

Constant Value: 1 (0x00000001)

### PROTOCOL_UMP_MIDI_1_0_UP_TO_64_BITS_AND_JRTS

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final int PROTOCOL_UMP_MIDI_1_0_UP_TO_64_BITS_AND_JRTS
```

Constant representing a default protocol with Universal MIDI Packets (UMP). UMP is defined in "Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol" spec. All UMP data should be a multiple of 4 bytes. Use MIDI 1.0 through UMP with packet sizes up to 64 bits and jitter reduction timestamps. Call `https://developer.android.com/reference/android/media/midi/MidiManager#getDevicesForTransport(int)` with parameter `https://developer.android.com/reference/android/media/midi/MidiManager#TRANSPORT_UNIVERSAL_MIDI_PACKETS` to get devices with this transport.

<br />

**See also:**

- `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getDefaultProtocol()`

Constant Value: 2 (0x00000002)

### PROTOCOL_UMP_MIDI_2_0

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final int PROTOCOL_UMP_MIDI_2_0
```

Constant representing a default protocol with Universal MIDI Packets (UMP). UMP is defined in "Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol" spec. All UMP data should be a multiple of 4 bytes. Use MIDI 2.0 through UMP. Call `https://developer.android.com/reference/android/media/midi/MidiManager#getDevicesForTransport(int)` with parameter `https://developer.android.com/reference/android/media/midi/MidiManager#TRANSPORT_UNIVERSAL_MIDI_PACKETS` to get devices with this transport.

<br />

**See also:**

- `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getDefaultProtocol()`

Constant Value: 17 (0x00000011)

### PROTOCOL_UMP_MIDI_2_0_AND_JRTS

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final int PROTOCOL_UMP_MIDI_2_0_AND_JRTS
```

Constant representing a default protocol with Universal MIDI Packets (UMP). UMP is defined in "Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol" spec. All UMP data should be a multiple of 4 bytes. Use MIDI 2.0 through UMP and jitter reduction timestamps. Call `https://developer.android.com/reference/android/media/midi/MidiManager#getDevicesForTransport(int)` with parameter `https://developer.android.com/reference/android/media/midi/MidiManager#TRANSPORT_UNIVERSAL_MIDI_PACKETS` to get devices with this transport.

<br />

**See also:**

- `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getDefaultProtocol()`

Constant Value: 18 (0x00000012)

### PROTOCOL_UMP_USE_MIDI_CI

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final int PROTOCOL_UMP_USE_MIDI_CI
```

Constant representing a default protocol with Universal MIDI Packets (UMP). UMP is defined in "Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol" spec. All UMP data should be a multiple of 4 bytes. Use UMP to negotiate with the device with MIDI-CI. MIDI-CI is defined in "MIDI Capability Inquiry (MIDI-CI)" spec. Call `https://developer.android.com/reference/android/media/midi/MidiManager#getDevicesForTransport(int)` with parameter `https://developer.android.com/reference/android/media/midi/MidiManager#TRANSPORT_UNIVERSAL_MIDI_PACKETS` to get devices with this transport.

<br />

**See also:**

- `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getDefaultProtocol()`

Constant Value: 0 (0x00000000)

### PROTOCOL_UNKNOWN

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final int PROTOCOL_UNKNOWN
```

Constant representing a device with an unknown default protocol. If Universal MIDI Packets (UMP) are needed, use MIDI-CI through MIDI 1.0. UMP is defined in "Universal MIDI Packet (UMP) Format and MIDI 2.0 Protocol" spec. MIDI-CI is defined in "MIDI Capability Inquiry (MIDI-CI)" spec.

<br />

**See also:**

- `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getDefaultProtocol()`

Constant Value: -1 (0xffffffff)

### TYPE_BLUETOOTH

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final int TYPE_BLUETOOTH
```

Constant representing Bluetooth MIDI devices for `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getType()`

<br />

Constant Value: 3 (0x00000003)

### TYPE_USB

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final int TYPE_USB
```

Constant representing USB MIDI devices for `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getType()`

<br />

Constant Value: 1 (0x00000001)

### TYPE_VIRTUAL

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final int TYPE_VIRTUAL
```

Constant representing virtual (software based) MIDI devices for `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#getType()`

<br />

Constant Value: 2 (0x00000002)

## Fields

### CREATOR

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

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

<br />

<br />

## Public methods

### describeContents

Added in [API level 23](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 `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`, the return value of this method must include the `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 - `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` |

### equals

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public boolean equals (Object o)
```

Indicates whether some other object is "equal to" this one.

The `equals` method implements an equivalence relation on non-null object references:

- It is *reflexive*: for any non-null reference value `x`, `x.equals(x)` should return `true`.
- It is *symmetric*: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`.
- It is *transitive*: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`.
- It is *consistent*: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified.
- For any non-null reference value `x`, `x.equals(null)` should return `false`.

An equivalence relation partitions the elements it operates on into *equivalence classes*; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

<br />

| Parameters ||
|---|---|
| `o` | `Object`: the reference object with which to compare. <br /> |

| Returns ||
|---|---|
| `boolean` | `true` if this object is the same as the obj argument; `false` otherwise. <br /> |

### getDefaultProtocol

Added in [API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getDefaultProtocol ()
```

Returns the default protocol. For most devices, this will be `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UNKNOWN`. Returning `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UNKNOWN` is not an error; the device just doesn't support Universal MIDI Packets by default.

<br />

| Returns ||
|---|---|
| `int` | the device's default protocol. Value is one of the following: - `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_USE_MIDI_CI` - `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_1_0_UP_TO_64_BITS` - `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_1_0_UP_TO_64_BITS_AND_JRTS` - `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_1_0_UP_TO_128_BITS` - `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_1_0_UP_TO_128_BITS_AND_JRTS` - `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_2_0` - `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UMP_MIDI_2_0_AND_JRTS` - `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo#PROTOCOL_UNKNOWN` |

### getId

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getId ()
```

Returns the ID of the device. This ID is generated by the MIDI service and is not persistent across device unplugs.

<br />

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

### getInputPortCount

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getInputPortCount ()
```

Returns the device's number of input ports.

<br />

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

### getOutputPortCount

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getOutputPortCount ()
```

Returns the device's number of output ports.

<br />

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

### getPorts

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public PortInfo[] getPorts ()
```

Returns information about the device's ports. The ports are in unspecified order.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo.PortInfo` | array of `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo.PortInfo` <br /> |

### getProperties

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public Bundle getProperties ()
```

Returns the `https://developer.android.com/reference/android/os/Bundle` containing the device's properties.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/android/os/Bundle` | the device's properties <br /> |

### getType

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getType ()
```

Returns the type of the device.

<br />

| Returns ||
|---|---|
| `int` | the device's type <br /> |

### hashCode

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int hashCode ()
```

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by `https://developer.android.com/reference/java/util/HashMap`.

The general contract of `hashCode` is:

- Whenever it is invoked on the same object more than once during an execution of a Java application, the `hashCode` method must consistently return the same integer, provided no information used in `equals` comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
- If two objects are equal according to the `https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)` method, then calling the `hashCode` method on each of the two objects must produce the same integer result.
- It is *not* required that if two objects are unequal according to the `https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)` method, then calling the `hashCode` method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

<br />

<br />

| Returns ||
|---|---|
| `int` | a hash code value for this object. <br /> |

### isPrivate

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public boolean isPrivate ()
```

Returns true if the device is private. Private devices are only visible and accessible to clients with the same UID as the application that is hosting the device.

<br />

| Returns ||
|---|---|
| `boolean` | true if the device is private <br /> |

### toString

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public String toString ()
```

Returns a string representation of the object.

<br />

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

### writeToParcel

Added in [API level 23](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 `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of the following: - `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE` |