Introduction

This plugin allows upgrade of Telink OTA-compliant devices.

Supported devices:

• 8208 Dual Keyboard

Firmware Format

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

The cabinet file prepared by Telink Semiconductor includes a validated firmware image firmware.bin, an accompanying manifest.json of firmware description. At the moment only the version field takes effect.

This plugin supports the following protocol ID:

• com.telink.dfu

GUID Generation

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

• BLUETOOTH\VID_248A&PID_8208

HIDRAW is expected to be supported in the future.

Update Behavior

The upgrade mechanism resembles the way used in Telink OTA App. Read the handbook on Telink Wiki site for details.

Vendor ID Security

The vendor ID is set from the USB vendor, in this instance set to USB:0x248A.

External Interface Access

This plugin requires access to bluetooth GATT characteristics.

Version Considerations

This plugin has been available since fwupd version 2.0.0.

Owners

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

• Liang-Jiazhi: liangjiazhi-telink