1.. SPDX-License-Identifier: GPL-2.0-or-later
 2
 3Kernel driver surface_fan
 4=========================
 5
 6Supported Devices:
 7
 8  * Microsoft Surface Pro 9
 9
10Author: Ivor Wanders <ivor@iwanders.net>
11
12Description
13-----------
14
15This provides monitoring of the fan found in some Microsoft Surface Pro devices,
16like the Surface Pro 9. The fan is always controlled by the onboard controller.
17
18Sysfs interface
19---------------
20
21======================= ======= =========================================
22Name                    Perm    Description
23======================= ======= =========================================
24``fan1_input``          RO      Current fan speed in RPM.
25======================= ======= =========================================