Yocto for Raspberry Pi

Our application - creating the recipe

Now that our application is functional, we can create our recipe.

The first step is to create the file; for example, we can choose gpio-packt_0.1.bb.

• gpio-packt represents the name of the package (the PN variable).
• 0.1 represents the version number of the recipe (the PV variable).
• .bb represents the file extension (Bitbake).

The second step consists of placing the source code in a local repository, like this:

$ mkdir gpio-packt
$ cp /home/packt/gpio-example.c files/
$ ls gpio-packt
gpio-example.c

The recipe must be placed next to the gpio-packt directory, as shown here:

$ ls
gpio-packt/ gpio-packt.bb

After that, we can fill out our recipe like this:

DESCRIPTION = "gpio example" LICENSE="GPLv2" LIC_FILES_CHKSUM = ...