linux/Documentation/ABI/testing/sysfs-platform-intel-wmi-sbl-fw-update
Armin Wolf c9de2e5c15
Documentation: ABI: Update WMI device paths in ABI docs
The WMI driver core might append an ID to the WMI device name to avoid
name collisions in case multiple WMI devices with the same GUID are
present. Update all sysfs path referring to WMI devices to inform
users about this important detail.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20250610055526.23688-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2025-06-13 12:33:31 +03:00

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What: /sys/bus/wmi/devices/44FADEB1-B204-40F2-8581-394BBDC1B651[-X]/firmware_update_request
Date: April 2020
KernelVersion: 5.7
Contact: "Jithu Joseph" <jithu.joseph@intel.com>
Description:
Allow user space entities to trigger update of Slim
Bootloader (SBL). This attribute normally has a value
of 0 and userspace can signal SBL to update firmware,
on next reboot, by writing a value of 1.
There are two available states:
* 0 -> Skip firmware update while rebooting
* 1 -> Attempt firmware update on next reboot