[PATCH 1/1] [kernel-snaps-uc22/main] Add missing Atheros firmware files

[Sergio Costas Rodriguez]

I fixed this, and should be ready for another review... Maybe it got 
lost in the thread?

El 6/10/23 a las 12:19, Sergio Costas Rodriguez escribió:
> BugLink: https://bugs.launchpad.net/bugs/2025054
>
> When using the Ubuntu Core 22 kernel in an Asus Zenbook UX22,
> this error is shown in journalctl:
>
>      usb 1-1-1: Direct firmware load for ar3k/AthrBT_0x01020200.dfu failed with error -2
>      Bluetooth: Patch file not found ar3k/AthrBT_0x01020200.dfu
>      Bluetooth: Loading patch file failed
>      ath3k: probe of 1-1.1:1.0 failed with error -2
>
> and, of course, bluetooth doesn't work.
>
> This patch adds the missing files, and makes bluetooth work.
>
> Signed-off-by: Sergio Costas Rodriguez <sergio.costas at canonical.com>
> ---
>   trim-firmware | 12 ++++++++++++
>   1 file changed, 12 insertions(+)
>
> diff --git a/trim-firmware b/trim-firmware
> index 148c964..5e5e865 100755
> --- a/trim-firmware
> +++ b/trim-firmware
> @@ -68,6 +68,18 @@ if [ -e "${DESTDIR}"/firmware/regulatory.db ] ; then
>   	cp "${DESTDIR}"/firmware/regulatory.* "${DESTDIR}"/firmware.new
>   fi
>   
> +# Copy extra AthrBT files, because they are needed for some devices
> +# like the original Asus Zenbook; but do it only if the module ath3k.ko
> +# is compiled. The file ath3k-1.fw is already being copied, so
> +# it doesn't need to be managed here.
> +if [ -n "$(find "${DESTDIR}"/modules -name 'ath3k.ko*')" ] ; then
> +	mkdir -p "${DESTDIR}"/firmware.new/ar3k
> +	cp -a "${DESTDIR}"/firmware/ar3k/AthrBT_0x*.dfu "${DESTDIR}"/firmware.new/ar3k/
> +	# the "ramps_" files are also refered in the source code of the driver, so
> +	# we must add them too.
> +	cp -a "${DESTDIR}"/firmware/ar3k/ramps_0x*.dfu "${DESTDIR}"/firmware.new/ar3k/
> +fi
> +
>   # Move kernel firmware files to the new firmware directory
>   for d in "${DESTDIR}"/modules/* ; do
>   	if [ -d "${DESTDIR}"/firmware/"${d##*/}" ] ; then