---
title: wTransferSize
framework: usbdriverkit
role: symbol
role_heading: Instance Property
path: usbdriverkit/iousbdfudescriptor/wtransfersize
---

# wTransferSize

## Declaration

```occ
uint16_t wTransferSize;
```

## See Also

### Accessing the Descriptor Properties

- [bLength](usbdriverkit/iousbdfudescriptor/blength.md)
- [bDescriptorType](usbdriverkit/iousbdfudescriptor/bdescriptortype.md)
- [bmAttributes](usbdriverkit/iousbdfudescriptor/bmattributes.md)
- [wDetachTimeout](usbdriverkit/iousbdfudescriptor/wdetachtimeout.md)