davis@yoshi:~/progs/poky$ tree my-new-layer/
my-new-layer/
|-- conf
|   `-- layer.conf
`-- recipes-kernel
    `-- linux
        |-- linux-beagleboard.org-4.1
        |   `-- defconfig
        `-- linux-beagleboard.org_4.1.bb

4 directories, 3 files
davis@yoshi:~/progs/poky$ grep my-new-layer build/conf/bblayers.conf
BBLAYERS = "/home/davis/progs/poky/meta /home/davis/progs/poky/meta-yocto /home/davis/progs/poky/meta-yocto-bsp /home/davis/progs/meta-oracle-java /home/davis/progs/poky/my-new-layer"
davis@yoshi:~/progs/poky$