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Date: Mon, 27 Sep 2021 13:10:51 +0200
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: Linux Doc Mailing List <linux-doc@...r.kernel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
"Jonathan Corbet" <corbet@....net>,
Hans de Goede <hdegoede@...hat.com>,
Perry Yuan <perry_yuan@...l.com>, linux-kernel@...r.kernel.org
Subject: [PATCH 2/7] ABI: sysfs-platform-dell-privacy-wmi: correct ABI entries
As described at Documentation/ABI/README doesn't contain an
Attribute: field.
The way sysfs ABI is supposed to work is that each different
attribute would have a separate file. So, the right way to
map this would be like:
/sys/.../dell_privacy_supported_type/mic_mute
/sys/.../dell_privacy_supported_type/camera_shutter
/sys/.../dell_privacy_current_state/mic_mute
/sys/.../dell_privacy_current_state/camera_shutter
However, it seems to late to fix that, as this was merged already on
Kernel 5.13, and a change right now would be a regression.
So, instead, let's at least fix the entry to match the expected
format.
While here, fix the format of the contact, which is not a valid
e-mail URL.
This should also fix the current warnings produced when building the
docs:
Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi:35: WARNING: Unexpected indentation.
Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi:2: WARNING: Unexpected indentation.
Fixes: 8af9fa37b8a3 ("platform/x86: dell-privacy: Add support for Dell hardware privacy")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
See [PATCH 0/7] at: https://lore.kernel.org/all/cover.1632740376.git.mchehab+huawei@kernel.org/T/#t
.../testing/sysfs-platform-dell-privacy-wmi | 60 ++++++++++++-------
1 file changed, 38 insertions(+), 22 deletions(-)
diff --git a/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi b/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
index 7f9e18705861..1f1f274a6979 100644
--- a/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-dell-privacy-wmi
@@ -1,55 +1,71 @@
What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type
Date: Apr 2021
KernelVersion: 5.13
-Contact: "perry.yuan@...l.com>"
+Contact: "<perry.yuan@...l.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:
+
+ Attributes:
+ Microphone Mute:
Identifies the local microphone can be muted by hardware, no applications
is available to capture system mic sound
- Camera Shutter:
+ 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:
+ Values:
+
+ supported:
The privacy device is supported by this system
- unsupported:
+ unsupported:
The privacy device is not supported on this system
- For example to check which privacy devices are supported:
+ 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]
+ # 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@...l.com>"
+Contact: "<perry.yuan@...l.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
+ Attributes:
+ Microphone:
+ Identifies the local microphone can be muted by hardware, no applications
+ is available to capture system mic sound
- For example to check all supported current privacy device states:
+ 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
- # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state
- [Microphone] [unmuted]
- [Camera Shutter] [unmuted]
+ 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]
--
2.31.1
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