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+What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type
+Date: Apr 2021
+KernelVersion: 5.13
+Contact: "<perry.yuan@dell.com>"
+Description:
+ Display which dell hardware level privacy devices are supported
+ “Dell Privacy” is a set of HW, FW, and SW features to enhance
+ Dell’s commitment to platform privacy for MIC, Camera, and
+ ePrivacy screens.
+ The supported hardware privacy devices are:
+
+ Attributes:
+ Microphone Mute:
+ Identifies the local microphone can be muted by hardware, no applications
+ is available to capture system mic sound
+
+ Camera Shutter:
+ Identifies camera shutter controlled by hardware, which is a micromechanical
+ shutter assembly that is built onto the camera module to block capturing images
+ from outside the laptop
+
+ Values:
+
+ supported:
+ The privacy device is supported by this system
+
+ unsupported:
+ The privacy device is not supported on this system
+
+ For example to check which privacy devices are supported::
+
+ # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type
+ [Microphone Mute] [supported]
+ [Camera Shutter] [supported]
+ [ePrivacy Screen] [unsupported]
+
+What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state
+Date: Apr 2021
+KernelVersion: 5.13
+Contact: "<perry.yuan@dell.com>"
+Description:
+ Allow user space to check current dell privacy device state.
+ Describes the Device State class exposed by BIOS which can be
+ consumed by various applications interested in knowing the Privacy
+ feature capabilities
+
+ Attributes:
+ Microphone:
+ Identifies the local microphone can be muted by hardware, no applications
+ is available to capture system mic sound
+
+ Camera Shutter:
+ Identifies camera shutter controlled by hardware, which is a micromechanical
+ shutter assembly that is built onto the camera module to block capturing images
+ from outside the laptop
+
+ Values:
+ muted:
+ Identifies the privacy device is turned off
+ and cannot send stream to OS applications
+
+ unmuted:
+ Identifies the privacy device is turned on,
+ audio or camera driver can get stream from mic
+ and camera module to OS applications
+
+ For example to check all supported current privacy device states::
+
+ # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state
+ [Microphone] [unmuted]
+ [Camera Shutter] [unmuted]