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# IOUSBDeviceCapabilityBillboardAltConfig

The structure for the billboard alternative configuration device capability.

```
struct IOUSBDeviceCapabilityBillboardAltConfig;
```

## Overview

See USB Billboard 3.1.6.2: Billboard Capability Descriptor V1.1 and 1.21+.

## Topics

### Accessing the Descriptor Properties

[`uint16_t wSVID;`](/documentation/USBDriverKit/IOUSBDeviceCapabilityBillboardAltConfig/wSVID)

[`uint8_t bAltenateMode;`](/documentation/USBDriverKit/IOUSBDeviceCapabilityBillboardAltConfig/bAltenateMode)

[`uint8_t iAlternateModeString;`](/documentation/USBDriverKit/IOUSBDeviceCapabilityBillboardAltConfig/iAlternateModeString)


---

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