rnejdl: thanks !
BSDMare: you are right, and I agree on the fact that there are a gazillon ways to do the same thing under UNIX ( even if I hate sed and awk and would rather perl my code instead of using sh, sed and awk) but you got exactly my point: "Having it as a sysctl would be the most ideal option"
Furthermore ... the nvidia module already interfaces with the sysctl system as seen on my first post .. now .. why not reporting the GPU temp? that isn't that much to ask ... is just a few (I bet less than 20) lines of C code ...
and regarding the nvidia settings code issue .. nope .. I use FreeBSD ... and limited freedom ain't no freedom at all
btw: don't hide .. you are right in what you say