1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
---
title: Plugin: Intel Computer Vision Sensing
---
## 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`.
|
