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1What: /sys/firmware/acpi/platform_profile_choices2Date: October 20203Contact: 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 consumption10 cool Cooler operation11 quiet Quieter operation12 balanced Balance between low power consumption13 and performance14 balanced-performance Balance between performance and low15 power consumption with a slight bias16 towards performance17 performance High performance operation18 ==================== ========================================19 20 Userspace may expect drivers to offer more than one of these21 standard profile names.22 23What: /sys/firmware/acpi/platform_profile24Date: October 202025Contact: Hans de Goede <hdegoede@redhat.com>26Description: Reading this file gives the current selected profile for this27 device. Writing this file with one of the strings from28 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 those32 changes coming from a userspace write; or coming from another33 source such as e.g. a hotkey triggered profile change handled34 either directly by the embedded-controller or fully handled35 inside the kernel.36