/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
/*
* This header provides constants for most GPIO bindings .
*
* Most GPIO bindings include a flags cell as part of the GPIO specifier .
* In most cases , the format of the flags cell uses the standard values
* defined in this header .
*/
#ifndef _DT_BINDINGS_GPIO_GPIO_H
#define _DT_BINDINGS_GPIO_GPIO_H
/* Bit 0 express polarity */
#define GPIO_ACTIVE_HIGH 0
#define GPIO_ACTIVE_LOW 1
/* Bit 1 express single-endedness */
#define GPIO_PUSH_PULL 0
#define GPIO_SINGLE_ENDED 2
/* Bit 2 express Open drain or open source */
#define GPIO_LINE_OPEN_SOURCE 0
#define GPIO_LINE_OPEN_DRAIN 4
/*
* Open Drain / Collector is the combination of single - ended open drain interface .
* Open Source / Emitter is the combination of single - ended open source interface .
*/
#define GPIO_OPEN_DRAIN (GPIO_SINGLE_ENDED | GPIO_LINE_OPEN_DRAIN)
#define GPIO_OPEN_SOURCE (GPIO_SINGLE_ENDED | GPIO_LINE_OPEN_SOURCE)
/* Bit 3 express GPIO suspend/resume and reset persistence */
#define GPIO_PERSISTENT 0
#define GPIO_TRANSITORY 8
/* Bit 4 express pull up */
#define GPIO_PULL_UP 16
/* Bit 5 express pull down */
#define GPIO_PULL_DOWN 32
/* Bit 6 express pull disable */
#define GPIO_PULL_DISABLE 64
#endif
Messung V0.5 in Prozent C=97 H=92 G=94
¤ Dauer der Verarbeitung: 0.2 Sekunden
¤
*© Formatika GbR, Deutschland