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.

Owners

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

• Francis Lee FrancisLeeKinetic