Best course of action may be to dump the configuration data for the lm87 prior to loading the lm87 data (using the smbus access functions in the core i2c drivers) so that the BIOS configuration of the part can be determined. It is quite possible (almost certain) that the default lm87 settings are conflicting with the way that the inputs/outputs of the part are physically wired. Some of the I/O on that part is multi-purpose based on configuration making it impossible for the default driver initialization of the part to properly configure it to suit every design. Once you know the proper configuration of the part, change the lm87 driver to configure it the same way and recompile. May be way more than you want to get into but it's simpler than it sounds. On Wed, 2002-06-19 at 16:30, phil at netroedge.com wrote: > > Oh, boy, I'm not sure. It sounded like the fan was controlled by an > LM87. What controls the LM87? It seems obvious to me that the LM87's > must be controlled exclusively through the SMBus. It's possible that > ACPI (or some other Bios thing?) is controlling the LM87 via the > SMBus, but I'm not an ACPI expert. > > > Phil > > > On Wed, Jun 19, 2002 at 10:07:07PM +0100, Chris Rankin wrote: > > > > --- phil at netroedge.com wrote: > > > It's possible that the initialization function in > > > the LM87 driver in > > > lm-sensors is overriding the settings that the Bios > > > does. > > > > Ummm, I wonder. I tried setting the thermal fan to > > come on at 30 degrees C, so it came on immediately at > > power up. I noticed that the memory test was running > > slower than usual and then the boot-process "stuck" > > just after the hard disks had been recognised. I had > > to power off and re-enter the BIOS settings. Trying to > > boot at a higher temperature (45 degrees) resulted in > > the fan whirring intermittently and this time it > > managed to boot during one of the thermal fan's quiet > > periods. (I.e. it waited for the fan to stop spinning, > > and then booted!) At the LILO prompt screen, the > > keyboard was unresponsive as long as the thermal fan > > was on, and now that I've booted into Linux the fan > > isn't spinning at all. > > > > This is starting to sound "interrupt-like", to me. Do > > you think that the thermal fan could be part of the > > ACPI subsystem instead, and not connected to the SMBus > > at all? > > > > Chris > > > > > > __________________________________________________ > > Do You Yahoo!? > > Everything you'll ever need on one web page > > from News and Sport to Email and Music Charts > > http://uk.my.yahoo.com > > -- > Philip Edelbrock -- IS Manager -- Edge Design, Corvallis, OR > phil at netroedge.com -- http://www.netroedge.com/~phil > PGP F16: 01 D2 FD 01 B5 46 F4 F0 3A 8B 9D 7E 14 7F FB 7A -- Dan Eaton Senior Systems Engineer RLX Technologies, Inc. 25231 Grogan's Mill Rd - Suite 600 The Woodlands, TX 77380 281.863.2100 Main 281.863.2126 Direct 281.863.2104 Fax dan.eaton at rlxtechnologies.com http://www.rlxtechnologies.com
