---
title: Bundling Constants
framework: usbdriverkit
role: collectionGroup
role_heading: API Collection
path: usbdriverkit/bundling_constants-enum
---

# Bundling Constants

Constants associated with bulk I/O transfers.

## Topics

### Bundling Options

- [kIOUSBHostPipeBundlingMax](usbdriverkit/kiousbhostpipebundlingmax.md)

## See Also

### Interacting with Descriptor Rings

- [CreateMemoryDescriptorRing](usbdriverkit/iousbhostpipe/creatememorydescriptorring.md)
- [SetMemoryDescriptor](usbdriverkit/iousbhostpipe/setmemorydescriptor.md)
- [AsyncIOBundled](usbdriverkit/iousbhostpipe/asynciobundled.md)
- [CompleteAsyncIOBundled](usbdriverkit/iousbhostpipe/completeasynciobundled.md)