> +/**
> + * led_set - set the value of a LED
> + * @param led the led
> + * @param value the value of the LED (0 is disabled)
> + */
> +int led_set(struct led *led, unsigned int value)
> +{
> + if (value > led->max_value)
> + value = led->max_value;
> +
> + led->set(led, value);
> +
> + return 0;
why always return 0?
> +}
> +
> +/**
> + * led_set_num - set the value of a LED
> + * @param num the number of the LED
> + * @param value the value of the LED (0 is disabled)
> + */
> +int led_set_num(int num, unsigned int value)
> +{
> + struct led *led = led_by_number(num);
> +
> + if (!led)
> + return -ENODEV;
> +
> + return led_set(led, value);
> +}
> +
> +/**
> + * led_register - Register a LED
> + * @param led the led
> + */
> +int led_register(struct led *led)
> +{
no safe check?
> + led->num = num_leds++;
> +
> + list_add_tail(&led->list, &leds);
> +
> + return 0;
> +}
> +
> +/**
> + * led_unregister - Unegister a LED
> + * @param led the led
> + */
> +void led_unregister(struct led *led)
> +{
> + list_del(&led->list);
> +}
> diff --git a/include/led.h b/include/led.h
> new file mode 100644
> index 0000000..62d0d08
> --- /dev/null
> +++ b/include/led.h
> @@ -0,0 +1,25 @@
> +#ifndef __LED_H
> +#define __LED_H
> +
> +struct led {
> + unsigned long triger;
> + void (*set)(struct led *, unsigned int value);
return a int will good to known the result
> + int max_value;
> + int num;
> + struct list_head list;
> +};
> +
> +struct led *led_by_number(int no);
> +
> +static inline int led_get_number(struct led *led)
> +{
> + return led->num;
> +}
> +
> +int led_set_num(int num, unsigned int value);
> +int led_set(struct led *led, unsigned int value);
> +int led_register(struct led *led);
> +void led_unregister(struct led *led);
> +void led_unregister(struct led *led);
twice
Best Regards,
J.
_______________________________________________
barebox mailing list
barebox@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/barebox
