1 /* 2 * Copyright 2023 Daniel DeGrasse <daniel@degrasse.com> 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef ZEPHYR_INCLUDE_DRIVERS_LED_IS31FL3733_H_ 8 #define ZEPHYR_INCLUDE_DRIVERS_LED_IS31FL3733_H_ 9 10 /** 11 * @brief Blanks IS31FL3733 LED display. 12 * 13 * When blank_en is set, the LED display will be disabled. This can be used for 14 * flicker-free display updates, or power saving. 15 * 16 * @param dev: LED device structure 17 * @param blank_en: should blanking be enabled 18 * @return 0 on success, or negative value on error. 19 */ 20 int is31fl3733_blank(const struct device *dev, bool blank_en); 21 22 /** 23 * @brief Sets led current limit 24 * 25 * Sets the current limit for the LED driver. This is a separate value 26 * from per-led brightness, and applies to all LEDs. 27 * This value sets the output current limit according 28 * to the following formula: (840/R_ISET) * (limit/256) 29 * See table 14 of the datasheet for additional details. 30 * @param dev: LED device structure 31 * @param limit: current limit to apply 32 * @return 0 on success, or negative value on error. 33 */ 34 int is31fl3733_current_limit(const struct device *dev, uint8_t limit); 35 36 #endif /* ZEPHYR_INCLUDE_DRIVERS_LED_IS31FL3733_H_ */ 37
