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Sure, the README isn't very detailed is it?
Actually compiling the kernel module is straight forward. In a terminal change directory into the unpacked hanvon folder, i.e. cd hanvon. Path depending on where you downloaded it of course. Then in that folder issue the:
You'll notice you went from just 3 files README, Makefile, and hanvon.c to several new ones the one you're interested in is hanvon.ko. That's the kernel module/driver you need. What's happened is hanvon.c has been run through the gcc compiler.
Now the part that was left out is what to do with your new kernel driver. You could do a insmod and load it right away to test it:
If it works then to make it available through a restart you need to copy it into the appropriate modules directory. So next issue this command:
sudo insmod ./hanvon.ko
Then you want to rebuild all of the module dependenies:
sudo cp hanvon.ko /lib/modules/`uname -r`/kernel/drivers/input/tablet
Now when you reboot the driver should automatically be loaded.