# UsbRequestPipe ## Overview Defines a USB request pipe. **Since**: 10 **Related module**: [UsbDDK](capi-usbddk.md) **Header file:** [usb_ddk_types.h](capi-usb-ddk-types-h.md) ## Summary ### Member Variables | Name| Description| | -- | -- | | uint64_t interfaceHandle | Interface operation handle.| | uint8_t endpoint | Endpoint address.| | uint32_t timeout | Timeout duration, in milliseconds.|