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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/ABI/testing/sysfs-class-chromeos
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
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Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--Documentation/ABI/testing/sysfs-class-chromeos33
-rw-r--r--Documentation/ABI/testing/sysfs-class-chromeos-driver-cros-ec-lightbar74
-rw-r--r--Documentation/ABI/testing/sysfs-class-chromeos-driver-cros-ec-vbc6
3 files changed, 113 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-chromeos b/Documentation/ABI/testing/sysfs-class-chromeos
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+What: /sys/class/chromeos/<ec-device-name>/flashinfo
+Date: August 2015
+KernelVersion: 4.2
+Description:
+ Show the EC flash information.
+
+What: /sys/class/chromeos/<ec-device-name>/kb_wake_angle
+Date: March 2018
+KernelVersion: 4.17
+Description:
+ Control the keyboard wake lid angle. Values are between
+ 0 and 360. This file will also show the keyboard wake lid
+ angle by querying the hardware.
+
+What: /sys/class/chromeos/<ec-device-name>/reboot
+Date: August 2015
+KernelVersion: 4.2
+Description:
+ Tell the EC to reboot in various ways. Options are:
+
+ - "cancel": Cancel a pending reboot.
+ - "ro": Jump to RO without rebooting.
+ - "rw": Jump to RW without rebooting.
+ - "cold": Cold reboot.
+ - "disable-jump": Disable jump until next reboot.
+ - "hibernate": Hibernate the EC.
+ - "at-shutdown": Reboot after an AP shutdown.
+
+What: /sys/class/chromeos/<ec-device-name>/version
+Date: August 2015
+KernelVersion: 4.2
+Description:
+ Show the information about the EC software and hardware.
diff --git a/Documentation/ABI/testing/sysfs-class-chromeos-driver-cros-ec-lightbar b/Documentation/ABI/testing/sysfs-class-chromeos-driver-cros-ec-lightbar
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index 000000000..57a037791
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-chromeos-driver-cros-ec-lightbar
@@ -0,0 +1,74 @@
+What: /sys/class/chromeos/<ec-device-name>/lightbar/brightness
+Date: August 2015
+KernelVersion: 4.2
+Description:
+ Writing to this file adjusts the overall brightness of
+ the lightbar, separate from any color intensity. The
+ valid range is 0 (off) to 255 (maximum brightness).
+
+What: /sys/class/chromeos/<ec-device-name>/lightbar/interval_msec
+Date: August 2015
+KernelVersion: 4.2
+Description:
+ The lightbar is controlled by an embedded controller (EC),
+ which also manages the keyboard, battery charging, fans,
+ and other system hardware. To prevent unprivileged users
+ from interfering with the other EC functions, the rate at
+ which the lightbar control files can be read or written is
+ limited.
+
+ Reading this file will return the number of milliseconds
+ that must elapse between accessing any of the lightbar
+ functions through this interface. Going faster will simply
+ block until the necessary interval has lapsed. The interval
+ applies uniformly to all accesses of any kind by any user.
+
+What: /sys/class/chromeos/<ec-device-name>/lightbar/led_rgb
+Date: August 2015
+KernelVersion: 4.2
+Description:
+ This allows you to control each LED segment. If the
+ lightbar is already running one of the automatic
+ sequences, you probably won’t see anything change because
+ your color setting will be almost immediately replaced.
+ To get useful results, you should stop the lightbar
+ sequence first.
+
+ The values written to this file are sets of four integers,
+ indicating LED, RED, GREEN, BLUE. The LED number is 0 to 3
+ to select a single segment, or 4 to set all four segments
+ to the same value at once. The RED, GREEN, and BLUE
+ numbers should be in the range 0 (off) to 255 (maximum).
+ You can update more than one segment at a time by writing
+ more than one set of four integers.
+
+What: /sys/class/chromeos/<ec-device-name>/lightbar/program
+Date: August 2015
+KernelVersion: 4.2
+Description:
+ This allows you to upload and run custom lightbar sequences.
+
+What: /sys/class/chromeos/<ec-device-name>/lightbar/sequence
+Date: August 2015
+KernelVersion: 4.2
+Description:
+ The Pixel lightbar has a number of built-in sequences
+ that it displays under various conditions, such as at
+ power on, shut down, or while running. Reading from this
+ file displays the current sequence that the lightbar is
+ displaying. Writing to this file allows you to change the
+ sequence.
+
+What: /sys/class/chromeos/<ec-device-name>/lightbar/userspace_control
+Date: August 2015
+KernelVersion: 4.2
+Description:
+ This allows you to take the control of the lightbar. This
+ prevents the kernel from going through its normal
+ sequences.
+
+What: /sys/class/chromeos/<ec-device-name>/lightbar/version
+Date: August 2015
+KernelVersion: 4.2
+Description:
+ Show the information about the lightbar version.
diff --git a/Documentation/ABI/testing/sysfs-class-chromeos-driver-cros-ec-vbc b/Documentation/ABI/testing/sysfs-class-chromeos-driver-cros-ec-vbc
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index 000000000..38c5aaaaa
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-chromeos-driver-cros-ec-vbc
@@ -0,0 +1,6 @@
+What: /sys/class/chromeos/<ec-device-name>/vbc/vboot_context
+Date: October 2015
+KernelVersion: 4.4
+Description:
+ Read/write the verified boot context data included on a
+ small nvram space on some EC implementations.