Hi Kristen, On Thursday 25 October 2007, Kristen Carlson Accardi wrote: > Enable enclosure management via LED > > As described in the AHCI spec, some AHCI controllers may support > Enclosure management via a variety of protocols. This patch > adds support for the LED message type that is specified in > AHCI 1.1 and higher. Linux has a LED subsystem for that. May I suggest, that you just register these leds and let userspace handle them via that via the LED API? The LED userspace API is described in Documentation/leds-class.txt and the headers for registering LEDs is linux/leds.h under include/ Since you explicitly WANT user space to control these, that should be the right API. Richard, what do YOU think? Best Regards Ingo Oeser - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html