[yocto] Which .bbappend file ?

[Rick Bianchi]

Okay, I am feeling a little thick, but here is my question.

How do I know which .bbappend file is the right one to modify.

Here is everything that would be in my layers:

/yocto/poky/meta/recipes-kernel/linux/linux-yocto
/yocto/poky/meta/recipes-kernel/linux/linux-yocto-dev.bb
/yocto/poky/meta/recipes-kernel/linux/linux-yocto-rt_3.2.bb
/yocto/poky/meta/recipes-kernel/linux/linux-yocto-rt_3.4.bb
yocto/poky/meta/recipes-kernel/linux/linux-yocto-rt_3.8.bb
/yocto/poky/meta/recipes-kernel/linux/linux-yocto-tiny_3.2.bb
/yocto/poky/meta/recipes-kernel/linux/linux-yocto-tiny_3.4.bb
/yocto/poky/meta/recipes-kernel/linux/linux-yocto-tiny_3.8.bb
/yocto/poky/meta/recipes-kernel/linux/linux-yocto.inc
/yocto/poky/meta/recipes-kernel/linux/linux-yocto_3.2.bb
/yocto/poky/meta/recipes-kernel/linux/linux-yocto_3.4.bb
/yocto/poky/meta/recipes-kernel/linux/linux-yocto_3.8.bb




Generally speaking, the preferred approach is to determine the 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 8250.cfg in thefiles 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


Next, include this configuration fragment and *extend
the FILESPATH variable in your .bbappend file:*

     FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
     SRC_URI += "file://8250.cfg"


Thanks,
Rick
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