#### Plugin: Intel GSC — Graphics System Controller

## Introduction

This plugin is used to update the Intel graphics system controller via the Intel Management Engine.

## Firmware Format

There are two firmware formats in use:

- `$FPT` with children `FuIfwiFptFirmware`, where the `FW_DATA_IMAGE` is a `FuIfwiCpdFirmware`
- A linear array of `FuOpromFirmware` images, each with a `FuIfwiCpdFirmware`

This plugin supports the following protocol ID:

- `com.intel.gsc`

## GUID Generation

These devices use the standard PCI DeviceInstanceId values, e.g.

- `MEI\VID_8086&DEV_4905`

They also define custom per-part PCI IDs such as:

- `MEI\VID_8086&DEV_4905&PART_FWCODE`
- `MEI\VID_8086&DEV_4905&PART_FWDATA`
- `MEI\VID_8086&DEV_4905&PART_OPROMCODE`
- `MEI\VID_8086&DEV_4905&PART_OPROMDATA`

## Vendor ID Security

The vendor ID is set from the PCI vendor, in this instance set to `MEI:0x8086`

## External Interface Access

This plugin requires read/write access to `/dev/mei*`.

## Version Considerations

This plugin has been available since fwupd version `1.8.7`.

## Owners

Anyone can submit a pull request to modify this plugin, but the following people should be consulted before making major or functional changes:

- Vitaly Lubart: `vlubart`