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[ts-7000] Re: Greg Kroah-Hartman's response to SD-flash close source dri

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Subject: [ts-7000] Re: Greg Kroah-Hartman's response to SD-flash close source driver solution:
From: "charliem_1216" <>
Date: Wed, 21 Mar 2007 01:33:14 -0000
--- In  Curtis Monroe <> wrote:
>
> I asked Greg Kroah-Hartman author of the "Linux Device Drivers,
Third Edition"
> and current Linux kernel maintainer for the PCI, USB, I²C, driver
core and
> the sysfs kernel subsystems about the GPL BIOS work around for close
source
> SD-Flash drivers
>
> Here is what he responded:(March 20, 2007 02:06 pm)
> --------------------------------------------------------------------
>
>
> On Tue, Mar 20, 2007 at 12:51:19AM -0400, Curtis Monroe wrote:
> > In other words...Can embedded linux developers hide their close
source
> divers
> > in a custom close source BIOS, that is called from an open source
"wrapper
> > module"?
>
> No.
>
> > PCs have close source BIOSes.
>
> Some do, some do not.
>
> > My problem is the SD flash card interface is patented and its
governing body
> > doesn't allow release of open source drivers for the SD interface.
>
> That's not true, we have SD drivers in the Linux kernel now.
>
> > I know this violates the spirit of the GPL. But there doesn't seem
to be any
> > other solution. Besides abandoning the SD card interface.
> >
> > Researching the question on line did not turn up any conclusive
results.
>
> Why not use the SD code that is already in the kernel, my devices work
> just fine with it now...
>
> thanks,
>
> greg k-h
>
> --------------------------------------------------------------------
>
> -Curtis.
>

Hi Curtis -

Have you tried the SD code in the kernel, as Greg suggested?  Of
course this means using an up-to-date 2.6 kernel.  [Being able to use
the on-going developments is one reason I prefer to work with 2.6
kernels].

I don't have a SD-equipped board to try, but I'm interested in your
experiences.

Regards, ...... Charlie



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