On Thu, May 13, 2004 at 06:17:22PM +1000, Bradley Schatz wrote: > I tested this. pwmconfig didnt manage to stop any of my fans though. It > looks like my pwm isnt configured at the hardware level. Ok. I don't know pwmconfig, and the patch adds a interface that is only proposed atm (i.e., pwmconfig might not know about it). And looking at the patch and Documentation/i2c/sysfs-interface makes me think I gave some of the stuff the wrong names, need to fix that. So for further testing, it's currently better to use the sysfs interface directly. Also, there are starting to be a whole lot of toggles in the interface to get wrong... So here is a brief description: Mode 1: pwm disabled, gives on/off for the fan: xena:/sys/bus/i2c/devices/0-0290# echo 0 > pwm1_enable xena:/sys/bus/i2c/devices/0-0290# echo 1 > fan1_enable now the fan should be on. xena:/sys/bus/i2c/devices/0-0290# echo 0 > fan1_enable And that should turn it off. On my Asus a7v600, this is the only mode that works for the third fan (marked PWR IIRC). Mode 2: pwm enabled, manual control xena:/sys/bus/i2c/devices/0-0290# echo 1 > pwm1_enable xena:/sys/bus/i2c/devices/0-0290# echo 0 > fan1_auto_enable xena:/sys/bus/i2c/devices/0-0290# echo 255 > pwm1 Now it should run with full speed, doing xena:/sys/bus/i2c/devices/0-0290# echo 200 > pwm1 cuts down the speed a bit. Mode 3: xena:/sys/bus/i2c/devices/0-0290# echo 1 > pwm1_enable xena:/sys/bus/i2c/devices/0-0290# echo 1 > fan1_auto_enable Well, this mode isn't really ready yet... > > http://people.debian.org/~jmunsin/it87.patch2
