---
title: bIndex
framework: usbdriverkit
role: symbol
role_heading: Instance Property
path: usbdriverkit/iousbdevicecapabilitybillboardaltmode/bindex
---

# bIndex

## Declaration

```occ
uint8_t bIndex;
```

## See Also

### Accessing the Descriptor Properties

- [bLength](usbdriverkit/iousbdevicecapabilitybillboardaltmode/blength.md)
- [bDescriptorType](usbdriverkit/iousbdevicecapabilitybillboardaltmode/bdescriptortype.md)
- [bDevCapabilityType](usbdriverkit/iousbdevicecapabilitybillboardaltmode/bdevcapabilitytype.md)
- [dwAlternateModeVdo](usbdriverkit/iousbdevicecapabilitybillboardaltmode/dwalternatemodevdo.md)