Introduction

The Computer Vision Sensing camera is built by various silicon vendors and supported by Intel.

The Visual Sensing Controller a companion chip that helps make PCs more smart using AI. For example, it could be used to detect the presence of a user and automatically adjust the brightness of the screen.

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:

• com.intel.cvs

GUID Generation

These devices match from the standard I²C instance ID values, e.g.

• IC2\NAME_INTC10DE:00

The devices then create firmware matchable instance ID values which include the product PID, VID and an additional optional OEM PID, e.g.

• IC2\NAME_INTC10DE:00&VID_06CB&PID_06CB
• IC2\NAME_INTC10DE:00&VID_06CB&PID_06CB&OPID_12345678

Update Behavior

The device is probed by reading cvs_ctrl_data_pre. The firmware update is triggered by writing to cvs_ctrl_data_pre and status is reported by polling cvs_ctrl_data_fwupd.

Vendor ID Security

The vendor ID is set from the USB vendor, in this instance set to USB:0x06CB

Quirk Use

This plugin uses the following plugin-specific quirks:

IntelCvsMaxDownloadTime

The device maximum download time in ms, which defaults to 200s.

Since: 2.0.7

IntelCvsMaxRetryCount

The device maximum retry count, which defaults to 5.

Since: 2.0.7

External Interface Access

This plugin requires read/write access to /dev/i2c*.

Version Considerations

This plugin has been available since fwupd version 2.0.7.

Owners

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

• Richard Hughes: hughsie