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Date: Thu, 23 Feb 2012 00:57:30 +0000 From: Chris Diamand <chris.diamand@...il.com> To: kristoffer.ericson@...il.com Cc: linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org, Chris Diamand <chris.diamand@...il.com> Subject: [PATCH] Jornada 720: Fixes "Invalid argument" when changing backlight brightness. Sorry - this patch I just sent is for kernels 2.6.24/2.6.26. (I think it's actually been fixed on versions >3.0 but they versions don't seem to work on the jornada for various other reasons...) Thanks, Chris. --------------------- On jornada 720. Running: echo n > /sys/class/backlight/s1d13806fb/brightness would give a "write error: Invalid argument" as the max_brightness was not set, so any value other that 0 exceeds it. Now sets max_brightness to 255 when the module is loaded. Backlight can also be turned on and off using echo 0-4 > /sys/class/backlight/s1d13806fb/bl_power Also added some extra braces so jornada720_ssp.c. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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