---
title: bLength
framework: kernel
role: symbol
role_heading: Instance Property
path: kernel/iousbconfigurationdescheader/1546382-blength
---

# bLength

The size of the descriptor.

## Declaration

```occ
uint8_t bLength;
```

## See Also

### Getting the Properties

- [bDescriptorType](kernel/iousbconfigurationdescheader/1546140-bdescriptortype.md)
- [wTotalLength](kernel/iousbconfigurationdescheader/1546394-wtotallength.md)