Re: best way to handle LEDs

John Lenz
2005-11-03T02:53:13Z

On Wed, November 2, 2005 3:33 pm, Robert Schwebel said:
> On Wed, Nov 02, 2005 at 10:13:34PM +0100, Pavel Machek wrote:
>> We have some leds that are *not* on GPIO pins (like driven by
>> ACPI). We'd like to support those, too.
>
> One more argument to have a LED framework which sits ontop of a lowlevel
> one.
>

Except the led code that is being proposed CAN sit on top of a generic
GPIO layer. If a generic GPIO layer is created, you can create a led
driver that calls out to that GPIO layer.

You just need to fill in the following functions with some that raise and
lower the GPIO on the correct line....

int (*color_get)(struct device *, struct led_properties *props);
void (*color_set)(struct device *, struct led_properties *props, int value);

int (*brightness_get)(struct device *, struct led_properties *props);
void (*brightness_set)(struct device *, struct led_properties *props, int
value);

John