Script to build .deb kernel packages to workaround Bluetooth issue

(patch as described in http://www.spinics.net/lists/linux-bluetooth/msg64111.html)

docker/scripts/build-macos121-wily-kernel.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+## build-macos121-wily-kernel.sh
+##
+## @author gdm85
+##
+## Build a kernel with fixed bluetooth support for Mac OS 12,1 and Ubuntu Wily
+##
+#
+
+SCRIPTS=$(dirname $(readlink -m $0)) || exit $?
+
+set -e
+
+cd "$SCRIPTS"
+
+#./build-ubuntu-image.sh wily
+
+cd ../ubuntu-pkgbuilder
+
+make wily
+
+cd ../ubuntu-kernelbuilder
+
+cat<<EOF > patches/macos-121-btusb-fix.patch
+--- a/drivers/bluetooth/btusb.c 2015-10-28 14:52:20.466644715 +0000
++++ b/drivers/bluetooth/btusb.c 2015-10-28 14:52:34.715107143 +0000
+@@ -2657,7 +2657,7 @@
+        BT_DBG("intf %p id %p", intf, id);
+ 
+        /* interface numbers are hardcoded in the spec */
+-       if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
++       if (intf->cur_altsetting->desc.bInterfaceNumber != 1)
+                return -ENODEV;
+ 
+        if (!id->driver_info) {
+@@ -2827,7 +2827,7 @@
+                data->isoc = NULL;
+        } else {
+                /* Interface numbers are hardcoded in the specification */
+-               data->isoc = usb_ifnum_to_if(data->udev, 1);
++               data->isoc = usb_ifnum_to_if(data->udev, 3);
+        }
+ 
+        if (!reset)
+EOF
+
+make wily linux-image-wily
+
+echo "Linux kernel .deb packages are now available in packages/"