Here is a list of all struct and union fields with links to the structures/unions they belong to:

- u -

• UnicodeString : USB_Descriptor_String_t
• Unit : HID_ReportItem_Attributes_t
• UnitID : USB_Audio_Descriptor_FeatureUnit_t
• URI : USB_ClassInfo_AOA_Host_t
• Usage : HID_Usage_t , HID_CollectionPath_t , HID_ReportItem_Attributes_t
• USBSpecification : USB_Descriptor_DeviceQualifier_t , USB_Descriptor_Device_t
• UsingBootProtocol : USB_ClassInfo_HID_Host_t
• UsingReportIDs : HID_ReportInfo_t
• UsingReportProtocol : USB_ClassInfo_HID_Device_t