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kernel-dev: Edits to "Modifying a Recipe" section.

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Edits added a couple cross-refenences back into the YP
dev-manual where detailed examples of patching and configuring
the kernel exist.

(From yocto-docs rev: 1ae2a18f0367841d1ea9bb8d3f3d323a9b573533)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Scott Rifenbark
2013-01-11 15:45:45 -08:00
committed by Richard Purdie
parent d5e6f2a804
commit 095ee0a704
1 changed files with 12 additions and 32 deletions
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44
documentation/kernel-dev/kernel-dev-common.xml
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@@ -130,6 +130,12 @@
detects the change in the recipe and fetches and applies the patches
before building the kernel.
</para>
<para>
For a detailed example showing how to patch the kernel, see the
"<ulink url='&YOCTO_DOCS_DEV_URL;#patching-the-kernel'>Patching the Kernel</ulink>"
section in the Yocto Project Development Manual.
</para>
</section>
<section id='changing-the-configuration'>
@@ -156,7 +162,8 @@
<para>
Generally speaking, the preferred approach is to determine the
incremental change you want to make and add that as a fragment.
incremental change you want to make and add that as a
configuration fragment.
For example, if you want to add support for a basic serial
console, create a file named <filename>8250.cfg</filename> in the
<filename>${FILES}</filename> directory with the following
@@ -182,37 +189,10 @@
</para>
<para>
Original Text:
<literallayout class='monospaced'>
Making wholesale or incremental changes to the Linux kernel config can be made
by including a defconfig or configuration fragments in the SRC_URI.
If you have a complete Linux kernel .config file you want to use, copy it as
"defconfig" to the ${FILES} directory and add the following line to your
linux-yocto bbappend file in your layer:
SRC_URI += "file://defconfig"
Generally speaking, the preferred approach is to determine the incremental
change you want to make and add that as a fragment. For example, if you wanted
to add support for a basic serial console, create a file named "8250.cfg" in the
${FILES} directory with the following content (without indentation):
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
Then include this configuration fragment in the SRC_URI:
SRC_URI += "file://8250.cfg"
At the next build, bitbake will detect the change in the recipe and fetch and
apply the new configuration before rebuilding the Linux kernel.
</literallayout>
For a detailed example showing how to configure the kernel,
see the
"<ulink url='&YOCTO_DOCS_DEV_URL;#configuring-the-kernel'>Configuring the Kernel</ulink>"
section in the Yocto Project Development Manual.
</para>
</section>
</section>