---
title: cacheDescriptor
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/iousbhostdevice/1543430-cachedescriptor
---

# cacheDescriptor

## Declaration

```occ
virtual IOReturn cacheDescriptor(const StandardUSB::Descriptor *descriptor, uint16_t length, uint8_t index, uint16_t languageID);
```