The WMI exposes a write-only device ID where up to three fan modes can be switched on some laptops (TUF Gaming FX505GM). There is a hotkey combination Fn-F5 that does have a fan icon, which is designed to toggle between fan modes. The DSTS of the device ID returns information about the presence of this capability and the presence of each of the two additional fan modes as a bitmask (0x01 - overboost present, 0x02 - silent present) [1]. Add a SysFS entry that reads the last written value and updates value in WMI on write and a hotkey handler that toggles the modes taking into account their availability according to DSTS. Modes: * 0x00 - normal or balanced, * 0x01 - overboost, increased fan RPM, * 0x02 - silent, decreased fan RPM [1] Link: https://lkml.org/lkml/2019/4/12/110
Showing the changes to include/linux (1 of 3 files). Show all
Unified · Split
| @@ -57,6 +57,7 @@ · 56 unmodified lines | |||
| 57 | #define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021 | 57 | #define ASUS_WMI_DEVID_KBD_BACKLIGHT 0x00050021 |
| 58 | #define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022 /* ?? */ | 58 | #define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022 /* ?? */ |
| 59 | #define ASUS_WMI_DEVID_LIGHTBAR 0x00050025 | 59 | #define ASUS_WMI_DEVID_LIGHTBAR 0x00050025 |
| 60 | #define ASUS_WMI_DEVID_FAN_MODE 0x00110018 | ||
| 60 | 61 | ||
| 61 | /* Misc */ | 62 | /* Misc */ |
| 62 | #define ASUS_WMI_DEVID_CAMERA 0x00060013 | 63 | #define ASUS_WMI_DEVID_CAMERA 0x00060013 |