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To list the Yocto components, use:

bitbake-layers show-recipes

...

...

bitbake -s

Apply Patch and Build Component

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        SRC_URI += "file://<name>.patch"                              

        eg:  SRC_URI += "file://temp.patch" in  meta-rdk-video/recipes-extended/devicesettings/devicesettings_git.bb          

...

        patches/temp.patch

6) quilt add "filename which you need to modify" (If multiple files are there, then add all those)

...

7) Make necessary modifications required for these files.

8) quilt refresh

9) Verify if your modifications are reflected in the patch file.

         vi patches/<name>.patch

10) Now replace this patch file with original one in files folder.

         eg: cp patches/temp.patch ~/.../meta-rdk-video/recipes-extended/devicesettings/files/temp.patch

11) exit 

12) Do a clean and then build.

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