Plugin: Algoltek USB
Introduction
This plugin supports the firmware upgrade of DisplayPort over USB-C to HDMI converter provided by Algoltek, Inc. These DisplayPort over USB-C to HDMI converters can be updated through multiple interfaces, but this plugin is only designed for the USB interface.
Firmware Format
The daemon will decompress the cabinet archive and extract a firmware blob in a packed binary file format.
This plugin supports the following protocol ID:
tw.com.algoltek.usb
GUID Generation
These devices use the standard USB DeviceInstanceId values, e.g.
USB\VID_25A4&PID_9311USB\VID_25A4&PID_9312USB\VID_25A4&PID_9313USB\VID_25A4&PID_9411USB\VID_25A4&PID_9412USB\VID_25A4&PID_9421
Update Behavior
The firmware is deployed when the device is in normal runtime mode, and the device will reset when the new firmware has been programmed.
Vendor ID Security
The vendor ID is set from the USB vendor, in this instance set to USB:0x25A4.
External Interface Access
This plugin requires read/write access to /dev/bus/usb.
Version Considerations
This plugin has been available since fwupd version 1.9.11.
Owners
Anyone can submit a pull request to modify this plugin, but the following people should be consulted before making major or functional changes:
Mason Lyu: MasonLyu