/usr/src/kernels/4.18.0-553.157.1.el8_10.x86_64/include/linux
Edit: /usr/src/kernels/4.18.0-553.157.1.el8_10.x86_64/include/linux/thinkpad_acpi.h (320B)
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __THINKPAD_ACPI_H__
#define __THINKPAD_ACPI_H__
/* These two functions return 0 if success, or negative error code
(e g -ENODEV if no led present) */
enum {
TPACPI_LED_MUTE,
TPACPI_LED_MICMUTE,
TPACPI_LED_MAX,
};
int tpacpi_led_set(int whichled, bool on);
#endif