# OpromUpdateDxeLightningRidgeEXECB4

**Index**: 0039 | **Size**: 4224 bytes | **Arch**: x64 | **Phase**: DXE

## Overview
UBA board-type PCIe OpROM update stub driver for the LightningRidge EX EC B4 platform. Unlike earlier platform variants with full OpROM configuration tables, this driver registers a single callback that returns EFI_UNSUPPORTED, indicating the B4 platform does not support PCIe OpROM updates.

## Key Functions
- _ModuleEntryPoint — Caches globals, resolves HOB list, locates UBA protocol, registers stub config
- OpromOperationUnsupported — Stub callback returning EFI_UNSUPPORTED for all operations
- DebugPrint / DebugAssert — Debug output via DebugLib protocol

## Protocols / Dependencies
- UBA LightningRidge EX EC B4 Board-Type Protocol
- DebugLib Protocol
- HOB List

## Platform
LightningRidge EX EC B4 (OpROM updates not supported)