> Let's see if I can remember (I currently don't have access to the > datasheets). Try the following: > cat pwmX (should return 255) > echo 2 > pwmX_enable > echo 100 > pwmX_auto_point4_temp Just realized that the temps are in millicelcius so the last line should read something like: echo 300000 > pwmX_auto_point4_temp The value written just needs to be large enough to saturate the register at 255 (it gets divided by 1000 in the driver before being written to the reg). I can give it a try on my machine next week earliest when I have access to it again. ...juerg