ATFintek - Automatic VGA fan controler program with Fintek F57373S and F57355S/SP
v0.1 2009-10-01 (since 2009-09-24)

NO WARRANTY. USE THIS PROGRAM AT YOUR OWN RISK.

Copyright Masanori HATA <http://www.mihr.net/>. I distribute this code under the GPL Lisence.

Usage:
	> /usr/local/bin/atfintek 3 0x2d 60
Syntax:
	atfintek <device number> <slave address> <interval time>
Install:
	1. Copy 'atfintek' to '/usr/local/bin' and set permission appropriately.
	2. Add some lines to '/etc/rc.local'. For example:
		sleep 5
		/usr/local/bin/atfintek 3 0x2d 60 &
	('&' means 'run this command at background')
	3. reboot
Note:
	1a. You must install nvidia driver. 
	1b. You must enable both 'i2c_dev' and 'f75375s' modules in the '/etc/modules' before using this program.
	2. If you install nvidia driver and enable those modules correctly, you can know device number and slave address by using 'sensors-detect' command of lm-sensors tool.
	3. On OS boot, i2c_dev may take several seconds to set up '/dev/i2c-x' nodes. So, you may insert 5 or more seconds delay (ex. 'sleep 5') before starting this program at background (ex. '/usr/local/bin/atfintek 3 0x2d 60 &') in the start up shell script ('/etc/rc.local').
	4. This program works fine with my PC (Asus V9570 (GeForce FX 5700); Devian 5.03; ndivia driver 173.14.20).
	5. Although I am already good at Perl, this is my first C program.
