36 lines
1.4 KiB
Plaintext
36 lines
1.4 KiB
Plaintext
|
What: /sys/firmware/acpi/platform_profile_choices
|
||
|
|
Date: October 2020
|
||
|
|
Contact: Hans de Goede <hdegoede@redhat.com>
|
||
|
|
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 <hdegoede@redhat.com>
|
||
|
|
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.
|