[meta-lts-mixins][wrynose/linux-firmware][PATCH 3/3] README: add LTS_LINUX_FIRMWARE_MIXIN_DEFAULT_PREFERENCE

Jose Quaresma <[email protected]>
Newsgroups org.yoctoproject.lists.yocto-patches
Message-ID <[email protected]>
In order to make this layer Yocto Project Compatible, the layer should not provide
new versions of packages by default. Because of this, the recipe provided in this
layer will not be used unless the LTS_LINUX_FIRMWARE_MIXIN_DEFAULT_PREFERENCE
variable is modified.

Signed-off-by: Jose Quaresma <[email protected]>
---
 README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/README.md b/README.md
index 16c0d8c..deeca33 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,16 @@ and officially Wrynose supports only that. This thin special-purpose mixin layer
 is meant to provide a current Linux firmware for Wrynose by backporting the
 linux-firmware recipe from the master branch of openembedded-core.
 
+In order to make this layer Yocto Project Compatible, the layer should not provide
+new versions of packages by default. Because of this, the recipe provided in this
+layer will not be used unless the LTS_LINUX_FIRMWARE_MIXIN_DEFAULT_PREFERENCE
+variable is modified. The default value is:
+
+```
+# DEFAULT_PREFERENCE for linux-firmware provided by the layer
+LTS_LINUX_FIRMWARE_MIXIN_DEFAULT_PREFERENCE ?= "-1"
+```
+
 Dependencies
 ------------
 
-- 
2.54.0
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