You're missing the SCC file, see
https://www.yoctoproject.org/docs/2.4.1/kernel-dev/kernel-dev.html#adding-recipe-space-kernel-features.
Inside the SCC file you include a reference to the CFG file, for example:
define KFEATURE_DESCRIPTION "Kernel configuration fragments"
define KFEATURE_COMPATIBILITY board
kconf hardware fragments.cfg
ALAN LEVY, Lead Consultant, Embedded Systems
Plextek Consulting, The Plextek Building, London Road, Great Chesterford,
Saffron Walden, CB10 1NY, UK
T: +44 (0) 1799 533200 E: [email protected] W: www.plextek.com
-----Original Message-----
From: Artjom Rjabov [mailto:[email protected]]
Sent: 26 April 2018 16:18
To: [email protected]
Subject: [meta-xilinx] Add kernel configuration options using configuration
fragments in custom layer
I am currently trying to modify the kernel configuration (overwrite default
xilinx-linux layer configs) by adding configuration fragments to my custom
layer like this :
linux-xlnx_%.bbappend file:
> FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}"
> SRC_URI =+ "file://fragments.cfg"
fragments.cfg:
> CONFIG_I2C_SLAVE = y
Then I run "bitbake \my-image\" and it parses the fragment perfectly, but it
doesn't look like it ends up in the final config.
mismatch-all.txt:
> Config: CONFIG_I2C_SLAVE
> From:
> <path-to>/poky/build/tmp/work-shared/zedboard-zynq7/kernel-source/.kernel-meta/configs/fragments.cfg
> Requested value: CONFIG_I2C_SLAVE = y
> Actual value: # CONFIG_I2C_SLAVE is not set
How to tell bitbake to use my config parameters over the default ones?
Actually, there are a lot of parameters in the "mismatch-all" from different
config files scattered all across "kernel-source" directory. What is the
priority?
Additionally, I tried to use SCC file with kconf, but it changes nothing. It
displays a warning during compilation: "specified values did not make it into
the kernel's final configuration: CONFIG_I2C_SLAVE". Same thing, but with a
proper warning.
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