cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sysfs-platform-dell-privacy-wmi (2512B)

      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]