Bug 1814 resulted from someone trying to add bluetooth to MACHINE_FEATURES. This should pull in the following kernel modules:

from task-base.bb:
RRECOMMENDS_task-base-pcmcia = "\
    kernel-module-pcmcia \
    kernel-module-airo-cs \
    kernel-module-pcnet-cs \
    kernel-module-serial-cs \
    kernel-module-ide-cs \
    kernel-module-ide-disk \
    ${@base_contains('DISTRO_FEATURES', 'wifi', 'kernel-module-hostap-cs', '',d)} \
    ${@base_contains('DISTRO_FEATURES', 'wifi', 'kernel-module-orinoco-cs', '',d)} \
    ${@base_contains('DISTRO_FEATURES', 'wifi', 'kernel-module-spectrum-cs', '',d)}"


But these aren't built for standard, or for any of the BSPs that could easily support it over USB.

The workaround is to add a bluetooth.cfg to a linux-yocto bbappend file. We can make this default since the infrastructure already exists to use it in the rest of poky.