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-rw-r--r--Documentation/ABI/testing/sysfs-class-firmware-attributes18
1 files changed, 17 insertions, 1 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-firmware-attributes b/Documentation/ABI/testing/sysfs-class-firmware-attributes
index 8ea59fea4709..3348bf80a37c 100644
--- a/Documentation/ABI/testing/sysfs-class-firmware-attributes
+++ b/Documentation/ABI/testing/sysfs-class-firmware-attributes
@@ -197,8 +197,24 @@ Description:
Drivers may emit a CHANGE uevent when a password is set or unset
userspace may check it again.
- On Dell systems, if Admin password is set, then all BIOS attributes
+ On Dell and Lenovo systems, if Admin password is set, then all BIOS attributes
require password validation.
+ On Lenovo systems if you change the Admin password the new password is not active until
+ the next boot.
+
+ Lenovo specific class extensions
+ ------------------------------
+
+ On Lenovo systems the following additional settings are available:
+
+ lenovo_encoding:
+ The encoding method that is used. This can be either "ascii"
+ or "scancode". Default is set to "ascii"
+
+ lenovo_kbdlang:
+ The keyboard language method that is used. This is generally a
+ two char code (e.g. "us", "fr", "gr") and may vary per platform.
+ Default is set to "us"
What: /sys/class/firmware-attributes/*/attributes/pending_reboot
Date: February 2021