---
title: bInterval
framework: kernel
role: symbol
role_heading: Instance Property
path: kernel/iousbendpointdescriptor/1546209-binterval
---

# bInterval

The interval to use when polling the endpoint for data transfers.

## Declaration

```occ
uint8_t bInterval;
```

## Discussion

Discussion Specify the value in frames or microframes, depending on the device’s speed.

## See Also

### Getting the Properties

- [bLength](kernel/iousbendpointdescriptor/1546156-blength.md)
- [bDescriptorType](kernel/iousbendpointdescriptor/1545995-bdescriptortype.md)
- [bEndpointAddress](kernel/iousbendpointdescriptor/1546243-bendpointaddress.md)
- [bmAttributes](kernel/iousbendpointdescriptor/1546048-bmattributes.md)
- [wMaxPacketSize](kernel/iousbendpointdescriptor/1546305-wmaxpacketsize.md)