## Introduction

This plugin supports updating FW for Kinetic DP converter chips.

## Firmware Format

The daemon will decompress the cabinet archive and extract a firmware blob in an unspecified binary file format.

This plugin supports the following protocol ID:

- com.kinet-ic.dp

## GUID Generation

These devices use the standard DPAUX GUID values, e.g.

- `DPAUX\OUI_0090CC24` (only-quirk)
- `DPAUX\OUI_0090CC24&HWREV_10` (only-quirk)
- `DPAUX\OUI_0090CC24&HWREV_10&DEVID_SYNAB2` (only-quirk)
- `DPAUX\OUI_0090CC24&DEVID_SYNAB2` (only-quirk)

These devices also use custom GUID values, e.g.

- `MST\VEN_60AD&DEV_${dev_id}&CID_${customer_id}&CHW_${customer_board}`
- `MST\VEN_60AD&DEV_${dev_id}&CID_${customer_id}` (only-quirk)
- `MST\VEN_60AD&FAM_${family_id}` (only-quirk)

## Vendor ID Security

The vendor ID is set from the PCI vendor, for example set to `DRM_DP_AUX_DEV:0x$(vid)`

## Requirements

### (Kernel) DP Aux Interface

Kernel 4.6 introduced an DRM DP Aux interface for manipulation of the registers needed to access an DP hub. This patch can be backported to earlier kernels: https://github.com/torvalds/linux/commit/e94cb37b34eb8a88fe847438dba55c3f18bf024a

## Usage

Supported devices will be displayed in `# fwupdmgr get-devices` output.

## External interface access

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

## Version Considerations

This plugin has been available since fwupd version `1.9.8`.