summaryrefslogtreecommitdiffstats
path: root/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi')
-rw-r--r--Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi55
1 files changed, 55 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi b/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
new file mode 100644
index 000000000000..7f9e18705861
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
@@ -0,0 +1,55 @@
+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
+
+ 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:
+ 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]