diff options
Diffstat (limited to 'Documentation/admin-guide/laptops/thinkpad-acpi.rst')
| -rw-r--r-- | Documentation/admin-guide/laptops/thinkpad-acpi.rst | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/admin-guide/laptops/thinkpad-acpi.rst b/Documentation/admin-guide/laptops/thinkpad-acpi.rst index f874db31801d..db4588af0278 100644 --- a/Documentation/admin-guide/laptops/thinkpad-acpi.rst +++ b/Documentation/admin-guide/laptops/thinkpad-acpi.rst @@ -1543,6 +1543,30 @@ Values: This setting can also be toggled via the Fn+doubletap hotkey. +USB-C Security +-------------- + +sysfs: usb_c_security + +Reports the current state of the USB-C Security (Restricted Mode) feature +on supported ThinkPad systems. When enabled, USB-C data connections are +disabled while power delivery is preserved. + +The available command is:: + + cat /sys/devices/platform/thinkpad_acpi/usb_c_security + +Values: + + * ``enabled`` - USB-C data connections are currently blocked + * ``disabled`` - USB-C data connections are currently allowed + +The attribute is read-only. The USB-C Security state can only be toggled +via the Fn+U followed by Fn+S hotkey chord. + +The sysfs attribute is not created on platforms that do not support this +feature. + Auxmac ------ |