1e41f4b71Sopenharmony_ci# UsbRequestPipe 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci## Overview 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ciDefines a USB request pipe. 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ci**Since** 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci10 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ci**Related Modules** 13e41f4b71Sopenharmony_ci 14e41f4b71Sopenharmony_ci[USB DDK](_usb_ddk.md) 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ci## Summary 18e41f4b71Sopenharmony_ci 19e41f4b71Sopenharmony_ci 20e41f4b71Sopenharmony_ci### Member Variables 21e41f4b71Sopenharmony_ci 22e41f4b71Sopenharmony_ci| Name| Description| 23e41f4b71Sopenharmony_ci| -------- | -------- | 24e41f4b71Sopenharmony_ci| [interfaceHandle](#interfacehandle) | Interface operation handle.| 25e41f4b71Sopenharmony_ci| [endpoint](#endpoint) | Endpoint address.| 26e41f4b71Sopenharmony_ci| [timeout](#timeout) | Timeout duration, in milliseconds.| 27e41f4b71Sopenharmony_ci 28e41f4b71Sopenharmony_ci 29e41f4b71Sopenharmony_ci## Member Variable Description 30e41f4b71Sopenharmony_ci 31e41f4b71Sopenharmony_ci 32e41f4b71Sopenharmony_ci### endpoint 33e41f4b71Sopenharmony_ci 34e41f4b71Sopenharmony_ci 35e41f4b71Sopenharmony_ci``` 36e41f4b71Sopenharmony_ciuint8_t UsbRequestPipe::endpoint 37e41f4b71Sopenharmony_ci``` 38e41f4b71Sopenharmony_ci 39e41f4b71Sopenharmony_ci**Description** 40e41f4b71Sopenharmony_ci 41e41f4b71Sopenharmony_ciEndpoint address. 42e41f4b71Sopenharmony_ci 43e41f4b71Sopenharmony_ci 44e41f4b71Sopenharmony_ci### interfaceHandle 45e41f4b71Sopenharmony_ci 46e41f4b71Sopenharmony_ci 47e41f4b71Sopenharmony_ci``` 48e41f4b71Sopenharmony_ciuint64_t UsbRequestPipe::interfaceHandle 49e41f4b71Sopenharmony_ci``` 50e41f4b71Sopenharmony_ci 51e41f4b71Sopenharmony_ci**Description** 52e41f4b71Sopenharmony_ci 53e41f4b71Sopenharmony_ciInterface operation handle. 54e41f4b71Sopenharmony_ci 55e41f4b71Sopenharmony_ci 56e41f4b71Sopenharmony_ci### timeout 57e41f4b71Sopenharmony_ci 58e41f4b71Sopenharmony_ci 59e41f4b71Sopenharmony_ci``` 60e41f4b71Sopenharmony_ciuint32_t UsbRequestPipe::timeout 61e41f4b71Sopenharmony_ci``` 62e41f4b71Sopenharmony_ci 63e41f4b71Sopenharmony_ci**Description** 64e41f4b71Sopenharmony_ci 65e41f4b71Sopenharmony_ciTimeout duration, in milliseconds. 66