Linux's Hardware Monitoring "HWMON" Picking Up Notification Support
HWMON subsystem maintainer and Google employee Guenter Roeck has queued up notification support for this subsystem. This serves as a generic notification mechanism not only to notify user-space but also the thermal subsystem for any HWMON driver events. In the HWMON context, these events could be important like warnings/critical alarms over detected temperatures or voltages for different components.
This new notification support generates sysfs and udev events for interfacing to from user-space while the kernel's thermal subsystem will see these events if connected to a temperature sensor via the hwmon code.
More details on this HWMON notification support coming to Linux 5.8 via this commit to hwmon-next. Hopefully this addition will prove useful to various user-space use-cases for receiving these events in place of having to frequently poll the sensor values itself.