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Date:	Sat, 30 Jan 2010 19:37:34 +0100
From:	Christian Hesse <>
To:	Greg KH <>
Subject: Re: Samsung N220 backlight support

On Saturday 30 January 2010 17:28:57 you wrote:
> On Sat, Jan 30, 2010 at 05:06:18PM +0100, Christian Hesse wrote:
> > Hello Greg,
> >
> > this adds support for Samsung N220 to your samsung-backlight. Tested on
> > my device, works for me.
> Hm, the driver that ended up in the kernel is very different from this
> version.  Can you work with that version and add the needed changes
> there and generate a patch?

Oh, did not notice it was included in mainline already.
I applied the attached patch. Insmod now gives:

insmod: error inserting 'samsung-laptop.ko': -1 Invalid parameters

and the logs contain the following:

kernel: samsung_laptop: found laptop model 'N220'
kernel: This computer does not support SABI

What is this SABI and SECLINUX thing about? Do you have a link to any more 
information? Is it possible that the N220 does not have this?
The N220 uses a Pine Train platform (featuring N450 with 64bit support), so I 
installed x86_64 to the device.

I would be glad to test whatever you give me.


View attachment "samsung-laptop-n220.diff" of type "text/x-patch" (594 bytes)

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