On Wed 2015-02-25 18:06:07, Alexandre Courbot wrote: > On Wed, Feb 25, 2015 at 5:25 PM, Geert Uytterhoeven > <geert@xxxxxxxxxxxxxx> wrote: > > CC linux-gpio, as this looks like the LED equivalent of bulk gpio? > > Indeed. The LED core could implement something similar to > gpiod_set_array() to allow several LEDs to be set in one call. If the > controller supports it, it would then set all the LEDs at once, > otherwise the core would apply the values serially. > > In leds-gpio.c, this multiple LED setting could be implemented by a > single call to gpiod_set_array() and the right thing would happen. Actually, there are two issues: some controlles can set all LEDs at once, and some can program pwm level smoothly using given program (and handle multiple leds in the process). -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
