Hi Jeremy,

I understand most of what you've got here, thanks, but I'm confused on the 
SRC_URI="<your kernel git path>…". Where should I look for the kernel git 
directory? I'm running Yocto with a mirror directory and that contains git 
directories for all of the major pieces, but I don't see one for the kernel. 
The kernel source is in tmp/work-shared/raspberrypi3/lernel-source, but that is 
not a git directory.

Any pointers would be appreciated.

Greg Wilson-Lindberg

Principal Firmware Engineer | Sakura Finetek USA, Inc.

1750 W 214th Street | Torrance, CA 90501 | U.S.A.

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F: +1 310 618 6902 | E: gwil...@sakuraus.com<mailto:gwil...@sakuraus.com>





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From: Jeremy Thien [mailto:jere...@adtecinc.com]
Sent: Friday, April 13, 2018 12:18 PM
To: Greg Wilson-Lindberg <gwil...@sakuraus.com>
Cc: yocto@yoctoproject.org
Subject: Re: [yocto] How to patch a driver in Linux source tree

SRC_URI = "<your kernel git path> 

Then place the patch in files subdirectory.

So your tree should look something like:

<your layer>/recipes-kernel/linux/
    <your patch>

Instead of "files", it might be named "linux-raspberrypi".

Hope this helps,

On Fri, Apr 13, 2018 at 2:41 PM Greg Wilson-Lindberg 
<gwil...@sakuraus.com<mailto:gwil...@sakuraus.com>> wrote:

I'm working on a raspberry pi3 Yocto build from Qt's boot2qt project, it's 
running Yocto version 2.2.3, and Linux kernel 4.4.50. I need to back port some 
changes to a file in drivers/net/can/spi. I confused about where and how I set 
up the patch file.

I have a linux-raspberrypi_4.4.bbappend file. Do I put the patch file in that, 
and If so, how do I indicate the path to the file?

Thanks for the help and enlightenment,

Greg Wilson-Lindberg
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Jeremy Thien
Director of Engineering | Adtec Digital
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