UsbOcUpdateDxeLightningRidgeEXRP

Overview

UsbOcUpdateDxeLightningRidgeEXRP is a UEFI DXE driver that configures USB over-current (OC) protection settings for the Lightning Ridge EXRP platform. It initializes UEFI globals, locates the HOB list, finds the UBA board-type protocol, and registers USB OC configuration data through the UBA framework. The driver shares the same UBA Board-Type Protocol GUID as other platform configuration drivers.

Key Functions

• _ModuleEntryPoint -- Entry point; initializes globals, locates HOB list and UBA protocol, registers USB OC configuration
• GetHobList -- Scans SystemTable->ConfigurationTable[] for EFI_HOB_LIST_GUID
• GetDebugProtocol -- Locates and caches the DebugLib protocol interface
• DebugPrint -- Checks CMOS debug level and calls DebugLib protocol output
• DebugAssert -- Calls DebugLib protocol assertion handler
• IsHobListGuid -- Optimized GUID comparison using two 64-bit unaligned reads
• ReadUnaligned64 -- Reads a 64-bit value from potentially unaligned memory

Dependencies

• UEFI Boot Services (gBS->LocateProtocol)
• UBA Protocol ({E03E0D46-5263-4845-B0A4-58D57B3177E2})
• UBA LightningRidgeEXRP USB OC Config Protocol ({2638009E-3850-4E4B-B05D-042A32DBB9D1})
• DebugLib Protocol

Platform

• Architecture: x86-64 (PE32+)
• Machine: 0x8664
• Subsystem: EFI Boot Service Driver (0x000B)
• Toolchain: VS2015, X64 DEBUG
• Sections: 6 (.text, .rdata, .data, .idata, .reloc)
• Entry Point: 0x390