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- What: /sys/firmware/acpi/platform_profile_choices
- Date: October 2020
- Contact: Hans de Goede <[email protected]>
- Description: This file contains a space-separated list of profiles supported for this device.
- Drivers must use the following standard profile-names:
- ==================== ========================================
- low-power Low power consumption
- cool Cooler operation
- quiet Quieter operation
- balanced Balance between low power consumption
- and performance
- balanced-performance Balance between performance and low
- power consumption with a slight bias
- towards performance
- performance High performance operation
- ==================== ========================================
- Userspace may expect drivers to offer more than one of these
- standard profile names.
- What: /sys/firmware/acpi/platform_profile
- Date: October 2020
- Contact: Hans de Goede <[email protected]>
- Description: Reading this file gives the current selected profile for this
- device. Writing this file with one of the strings from
- platform_profile_choices changes the profile to the new value.
- This file can be monitored for changes by polling for POLLPRI,
- POLLPRI will be signalled on any changes, independent of those
- changes coming from a userspace write; or coming from another
- source such as e.g. a hotkey triggered profile change handled
- either directly by the embedded-controller or fully handled
- inside the kernel.
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