Ok, so I played with RGB LED a bit, and we have quite a gap in documentation: what 50% brightness means is non-trivial and very important in case we want to do smooth blinking and color transitions. Signed-off-by: Pavel Machek <pavel@xxxxxx> diff --git a/Documentation/ABI/testing/sysfs-class-led b/Documentation/ABI/testing/sysfs-class-led index 3646ec8..649d7a6 100644 --- a/Documentation/ABI/testing/sysfs-class-led +++ b/Documentation/ABI/testing/sysfs-class-led @@ -8,6 +8,11 @@ Description: non-zero brightness settings. The value is between 0 and /sys/class/leds/<led>/max_brightness. + If LED supports continuous brightness settings, 50% brightness + should correspond to 50% brightness perceived by human, in a similar + manner pixel brightness on monitor does (not 50% PWM). + + What: /sys/class/leds/<led>/max_brightness Date: March 2006 KernelVersion: 2.6.17 -- (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
