1What:		/sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type
2Date:		Apr 2021
3KernelVersion:	5.13
4Contact:	"<perry.yuan@dell.com>"
5Description:
6		Display which dell hardware level privacy devices are supported
7		“Dell Privacy” is a set of HW, FW, and SW features to enhance
8		Dell’s commitment to platform privacy for MIC, Camera, and
9		ePrivacy screens.
10		The supported hardware privacy devices are:
11
12		Attributes:
13			Microphone Mute:
14				Identifies the local microphone can be muted by hardware, no applications
15				is available to capture system mic sound
16
17			Camera Shutter:
18				Identifies camera shutter controlled by hardware, which is a micromechanical
19				shutter assembly that is built onto the camera module to block capturing images
20				from outside the laptop
21
22		Values:
23
24			supported:
25				The privacy device is supported by this system
26
27			unsupported:
28				The privacy device is not supported on this system
29
30		For example to check which privacy devices are supported::
31
32		    # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type
33		    [Microphone Mute] [supported]
34		    [Camera Shutter] [supported]
35		    [ePrivacy Screen] [unsupported]
36
37What:		/sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state
38Date:		Apr 2021
39KernelVersion:	5.13
40Contact:	"<perry.yuan@dell.com>"
41Description:
42		Allow user space to check current dell privacy device state.
43		Describes the Device State class exposed by BIOS which can be
44		consumed by various applications interested in knowing the Privacy
45		feature capabilities
46
47		Attributes:
48			Microphone:
49				Identifies the local microphone can be muted by hardware, no applications
50				is available to capture system mic sound
51
52			Camera Shutter:
53				Identifies camera shutter controlled by hardware, which is a micromechanical
54				shutter assembly that is built onto the camera module to block capturing images
55				from outside the laptop
56
57		Values:
58			muted:
59				Identifies the privacy device is turned off
60				and cannot send stream to OS applications
61
62			unmuted:
63				Identifies the privacy device is turned on,
64				audio or camera driver can get stream from mic
65				and camera module to OS applications
66
67		For example to check all supported current privacy device states::
68
69		    # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state
70		    [Microphone] [unmuted]
71		    [Camera Shutter] [unmuted]
72