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U.S. Bank Europe DAC. Registered in Ireland – Number 418442..  Registered Office: Block F1, Cherrywood Business Park, Dublin 18, D18 W2X7, Ireland.
U.S. Bank Europe DAC, trading as Elavon Merchant Services, is regulated by the Central Bank of Ireland.
 
U.S. Bank Europe DAC. Registered in Ireland with Companies Registration Office. The liability of the member is limited. United Kingdom branch registered in England and Wales under the number BR022122.
U.S. Bank Europe DAC, trading as Elavon Merchant Services, is a credit institution authorised and regulated by the Central Bank of Ireland.  Authorised by the Prudential Regulation Authority.  Subject to regulation by the Financial Conduct Authority and limited regulation by the Prudential Regulation Authority.  Details about the extent of our regulation by the Prudential Regulation Authority are available from us on request.

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You can change the volume on the card reader.

:::::notice{note}

This feature is only supported on RBA/UPP pinpads.
:::::

## Code samples - set volume on card reader

### CWS 

#### Request

| Property | Description |
| --- | --- |
| method string required | `setVolumeOnCardReader` |
| requestId string required | Request ID |
| targetType string required | `cardReader` |
| version string required | 1.0 |
| parameters JSONObject optional | All relevant parameters. |


#### Response

| Property | Description |
| --- | --- |
| requestId string | Request ID As specified in the request. |
| statusDetails string | Request status |
| data JSONObject | Object holding various responses |


#### Request

```json
{
 "method" : "setVolumeOnCardReader",
 "requestId" : "1916281794",
 "targetType" : "cardReader",
 "version" : "1.0",
 "parameters" : {
 "volume" : "x"
 }
}
```

Later to query the status of the request

```json
{
 "method" : "getCommandStatusOnCardReader",
 "requestId" : "1916281795",
 "targetType" : "cardReader",
 "version" : "1.0",
 "parameters" : {
 "id" : "1916281794"
 }
}
```

#### Response

Initial response

```json
{
 "method" : "getCommandStatusOnCardReader",
 "requestId" : "1916281796",
 "targetType" : "cardReader",
 "version" : "1.0",
 "parameters" : {
 "id" : "1916281794"
 }
}
```

Complete response

```json
{
 "requestId" : "1916281796",
 "statusDetails" : "REQUEST_ACCEPTED",
 "data" : {
 "cardReaderCommand" : {
 "id" : "1916281794",
 "completed" : true,
 "eventQueue" : [ {
 "timeStamp" : "1664916260267",
 "statusDetails" : "CARD_READER_UPDATE_VOLUME_COMPLETED"
 }, {
 "timeStamp" : "1664916260267",
 "statusDetails" : "SET_VOLUME_SUCCEEDED"
 } ]
 }
 }
}
```

### Java

```java
// use local copy of ECLCardReaderInterface named cardReaderInterface
 cardReaderInterface.updateVolume(volume, new ECLCardReaderSetVolumeListener()
 {
 @Override public void deviceOperationCompleted(ECLCardReaderInterface eclCardReaderInterface,
 ECLTransactionProgress eclTransactionProgress)
 {
 //set volume succeeded successfully
 }
 
 @Override public void deviceOperationError(ECLCardReaderInterface eclCardReaderInterface, ECCError eccError)
 {
 //there was an error
 }
 
 @Override public void deviceOperationProgress(ECLCardReaderInterface eclCardReaderInterface,
 ECLTransactionProgress eclTransactionProgress)
 {
 //volume update in progress
 }
 });
```

### Objective-C

```objc
// Set volume on card reader
[cardReader updateVolume:self volume:volume];
 
// Implement ECLCardReaderUpdateVolumeDelegate callback methods
- (void)cardReaderUpdateVolumeSuccess:(id<ECLCardReaderProtocol>)cardReader {
 //set volume succeeded
}
 
- (void)cardReaderUpdateVolumeError:(id<ECLCardReaderProtocol>)cardReader error:(NSError *)error {
 //there was an error
}
 
- (void)cardReaderProgress:(id<ECLCardReaderProtocol>)cardReader progress:(ECLTransactionProgress)progress {
 //volume update in progress
}
```

### C\#

```c#
/* Asynchronous */ 
 m_CWS.StartSetVolumeOnCardReader(null, volume, MyNotifyCWSEvent, rc); 
/* Synchronous */ 
 StartSetVolumeOnCardReader(selectedDeviceSerialNumber, volume, ne, rc);
```

## Code samples - get volume on card reader



### CWS 

#### Request

| Property | Description |
| --- | --- |
| method string required | `getVolumeOnCardReader` |
| requestId string required | Request ID |
| targetType string required | `cardReader` |
| version string required | 1.0 |
| parameters JSONObject optional | All relevant parameters. |


#### Response

| Property | Description |
| --- | --- |
| requestId string | Request ID As specified in the request. |
| statusDetails string | Request status |
| data JSONObject | Object holding various responses |


#### Request

```json
{
 "method" : "getVolumeOnCardReader",
 "requestId" : "988110367",
 "targetType" : "cardReader",
 "version" : "1.0",
 "parameters" : { }
}
```

Later to query the status of the request

```json
{
 "method" : "getCommandStatusOnCardReader",
 "requestId" : "988110368",
 "targetType" : "cardReader",
 "version" : "1.0",
 "parameters" : {
 "id" : "988110367"
 }
```

#### Response

Initial response

```json
{
 "method" : "getCommandStatusOnCardReader",
 "requestId" : "988110368",
 "targetType" : "cardReader",
 "version" : "1.0",
 "parameters" : {
 "id" : "988110367"
 }
```

Complete response

```json
{
 "requestId" : "988110368",
 "statusDetails" : "REQUEST_ACCEPTED",
 "data" : {
 "cardReaderCommand" : {
 "id" : "988110367",
 "completed" : true,
 "eventQueue" : [ {
 "timeStamp" : "1666904684450",
 "statusDetails" : "GET_VOLUME_SUCCEEDED"
 } ],
 "volumeData" : {
 "volumeLevel" : "LOW"
 }
 }
 }
```

### Java

```java
// use local copy of ECLCardReaderInterface named cardReaderInterface 
cardReaderInterface.getVolume(new ECLCardReaderGetVolumeListener()
 {
 @Override public void deviceOperationCompleted(ECLCardReaderInterface eclCardReaderInterface,
 ECLVolumeLevel volumeLevel)
 {
 //get volume succeeded successfully
 }
 
 @Override
 public void deviceOperationError(ECLCardReaderInterface eclCardReaderInterface, ECCError eccError)
 {
 //there was an error
 }
 
 @Override
 public void deviceOperationProgress(ECLCardReaderInterface eclCardReaderInterface,
 ECLTransactionProgress eclTransactionProgress)
 {
 //volume retrieval in progress
 }
 });
```

### Objective-C

```objc
ECLVolumeLevel deviceVolume = [cardReader retrieveVolume];
```

### C\#

```c#
/* Asynchronous */ 
 m_CWS.StartGetCardReaderVolume(MyNotifyCWSEvent, MyGetVolumeLevelComplete);
```

Volume control

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