[yocto] Missing firmware files

[Gary Thomas]

I have a .bbappend which I use to add some non-public firmware
files to linux-firmware.  This set up used to work, but today
I'm getting only empty packages.  Here's my .bbappend fragment

   #---------------------------------------------------------------------------------------
   # Wi2Wi (based on Marvell SDIO 86xx devices
   #
   LICENSE_${PN}-wi2wi = "Firmware:LICENCE.Wi2Wi_firmware.txt"
   PROVIDES += " linux-firmware-wi2wi "
   SRC_URI += " \
	http://www.not-public.com/Wi2Wi-firmware.tgz;name=Wi2Wi-firmware \
   "
   SRC_URI[Wi2Wi-firmware.md5sum] = "2b400aee75e7522eb7f9a299aaa6d023"
   SRC_URI[Wi2Wi-firmware.sha256sum] = "33b08d06169074e3d680df20f057580bbc5aa3aaa07e8ba3744c9318d0cbba5d"

   do_install_append() {
         cd ${S}
	install -d  ${D}/lib/firmware/
	# Wi2Wi via libertas
	install -m 0666 ${WORKDIR}/sd8688.bin ${D}/lib/firmware
	install -m 0666 ${WORKDIR}/sd8688_helper.bin ${D}/lib/firmware
	install -m 0666 ${WORKDIR}/LICENCE.Wi2Wi_firmware.txt ${D}/lib/firmware/
   }

   PACKAGES += "${PN}-wi2wi"
   FILES_${PN}-wi2wi = "/lib/firmware/sd86*.bin /lib/firmware/LICENCE.Wi2Wi_firmware.txt"
   RPROVIDES_${PN}-wi2wi = "${PN}-wi2wi"

The desired files do end up in my install image, but not in the
split package linux-firmware-wi2wi

Any ideas what I'm missing in the packaging that is ending up with
empty packages?

Thanks

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------