I’m bringing up my Novena-RF on a Novena running Linux 4.4.0, consequently the pre-compiled driver for Linux 3.19 in Github will not work. (insmod says “insmod: ERROR: could not insert module /home/roland/Novena-RF/driver/binary/novena_rf.ko: Invalid module format” and dmesg shows “novena_rf: disagrees about version of symbol module_layout”.)
The instructions in the wiki state “This is an out of tree kernel module, it requires a cross ARM toolchain and a build of the Linux kernel.”
I’m a little surprised by the need for a build of the kernel (isn’t this why linux-headers-* packages exist?), but really don’t understand the need for a cross-compiler. Is there some reason for not simply compiling natively on the Novena?