If you have problems compiling acerhk on the latest ubuntu distribution modify
/usr/src/`uname -r`/Makefile and comment :
ifdef CONFIG_FUNCTION_TRACER
#KBUILD_CFLAGS<->+= -pg
endif
Remove the comment after the successful compile so you leave the sources as they were.
Oh, I was waiting for this since Ubuntu 10.04 was released!
It worked perfectly on my Acer TravelMate 2700 and now I can use:
echo 0 > /proc/driver/acerhk/wirelessled
echo 1 > /proc/driver/acerhk/wirelessled
… to turn off or on the wireless led button light.
THANK YOU, THANK YOU, THANK YOU!!!