1What: /sys/firmware/acpi/platform_profile_choices 2Date: October 2020 3Contact: Hans de Goede <hdegoede@redhat.com> 4Description: This file contains a space-separated list of profiles supported for this device. 5 6 Drivers must use the following standard profile-names: 7 8 ==================== ======================================== 9 low-power Low power consumption 10 cool Cooler operation 11 quiet Quieter operation 12 balanced Balance between low power consumption 13 and performance 14 balanced-performance Balance between performance and low 15 power consumption with a slight bias 16 towards performance 17 performance High performance operation 18 ==================== ======================================== 19 20 Userspace may expect drivers to offer more than one of these 21 standard profile names. 22 23What: /sys/firmware/acpi/platform_profile 24Date: October 2020 25Contact: Hans de Goede <hdegoede@redhat.com> 26Description: Reading this file gives the current selected profile for this 27 device. Writing this file with one of the strings from 28 platform_profile_choices changes the profile to the new value. 29 30 This file can be monitored for changes by polling for POLLPRI, 31 POLLPRI will be signalled on any changes, independent of those 32 changes coming from a userspace write; or coming from another 33 source such as e.g. a hotkey triggered profile change handled 34 either directly by the embedded-controller or fully handled 35 inside the kernel. 36