diff options
Diffstat (limited to 'Documentation/ABI/testing/sysfs-platform-oxp')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-platform-oxp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-platform-oxp b/Documentation/ABI/testing/sysfs-platform-oxp new file mode 100644 index 000000000000..b3f39fc21dfa --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-oxp @@ -0,0 +1,25 @@ +What: /sys/devices/platform/<platform>/tt_toggle +Date: Jun 2023 +KernelVersion: 6.5 +Contact: "Antheas Kapenekakis" <lkml@antheas.dev> +Description: + Takeover TDP controls from the device. OneXPlayer devices have a + turbo button that can be used to switch between two TDP modes + (usually 15W and 25W). By setting this attribute to 1, this + functionality is disabled, handing TDP control over to (Windows) + userspace software and the Turbo button turns into a keyboard + shortcut over the AT keyboard of the device. In addition, + using this setting is a prerequisite for PWM control for most + newer models (otherwise it NOOPs). + +What: /sys/devices/platform/<platform>/tt_led +Date: April 2025 +KernelVersion: 6.16 +Contact: "Antheas Kapenekakis" <lkml@antheas.dev> +Description: + Some OneXPlayer devices (e.g., X1 series) feature a little LED + nested in the Turbo button. This LED is illuminated when the + device is in the higher TDP mode (e.g., 25W). Once tt_toggle + is engaged, this LED is left dangling to its last state. This + attribute allows userspace to control the LED state manually + (either with 1 or 0). Only a subset of devices contain this LED. |