coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
ec.h
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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 
3 /* Enable EC backed ALS device in ACPI */
4 #define EC_ENABLE_ALS_DEVICE
5 
6 /* Enable EC backed Keyboard Backlight in ACPI */
7 #define EC_ENABLE_KEYBOARD_BACKLIGHT
8 
9 /* EC ENABLE MULTIPLE DPTF PROFILES */
10 #define EC_ENABLE_MULTIPLE_DPTF_PROFILES
11 
12 /* Enable Tablet switch */
13 #define EC_ENABLE_TBMC_DEVICE