led.h File Reference

LEDs described by the device description, numbered from 0. More...

#include "homecore/vfs/vfs.h"
#include <stdbool.h>

Include dependency graph for led.h:

Go to the source code of this file.

Data Structures
struct	led_ops_t
	Operations an LED driver provides; every one is required. More...
struct	led_t
	An LED: driver operations bound to one device instance. More...
struct	led_table_t
	Every LED in index order; generated in devicetree.c. More...

Functions
Using LEDs
unsigned	led_count (void)
	Report how many LEDs the board describes.
int	led_set (unsigned index, bool on)
	Turn an LED on or off.
int	led_get (unsigned index, bool *on)
	Read whether an LED is lit.
int	led_toggle (unsigned index)
	Invert an LED.

Driver interface
const led_table_t	dt_led_table
	The board's LEDs; generated in devicetree.c.
void	led_register_node (vfs_node_t *node, const char *path, const led_t *led)
	Register the device file of an LED.

Detailed Description

LEDs described by the device description, numbered from 0.