led_on()

int led_on	(	uint8_t	led_unit,
			... )

Turn the given LED unit on.

Note

A led unit is defined as an RGB LED or a monochrome LED.

Parameters

led_unit

Selected LED unit. Defines are located in board.h.

Note

If the given LED unit is an RGB LED, color must be provided as a single vararg. See led_color. For monochrome LEDs, the vararg will be ignored. Using a LED unit assigned to another core will do nothing and return 0.

Returns

0 on success. -EPERM if the module has not been initialized. -EINVAL if the color argument is illegal. Other errors from underlying drivers.