Do you have a URL for the datasheet? Perhaps someone else on this list can look at the datasheet and help you find a compatible driver. Do you know what address the EMC6W201 device is at? Can you post the output of 'i2cdetect -l' and 'i2cdetect 0' If you know what the I2C address should be (it should be in the datasheet what the default I2C address is), then you should also run 'i2cdump 0 0xYY' where 0xYY is the I2C address of the device. Thanks, :v) Ric Johnson wrote: >Hi: > >I need to monitor temperatures on my system in real time. ( big surprise, >huh?, :) ) >The mobo is a Gigabyte(GBT) GA-2CEWH dual Opteron based system which includes >an ITE 8712F Super I/O as well as the SMSC EMC6W201 monitoring device. >The SMSC is similar in function to the SMSC EMC6D* devices but that is pretty >much all -only "similar": lm_sensors does not recognize the 6W201 and trying >to use the EMC6D* modules does not work. > >According to GBT the 8712F is strictly used for I/O and all monitoring is done >by the SMSC device. I am not positive that is entirely true but it is mostly >so. The installation of lm_sensors (SUSE 10.x) provides pretty wacky results >for everything except the 12VDC line and, possibly, one fan. ... > >I have read most of the 6W201 datasheet and found, I hope, all pertinent info >necessary to get the monitoring done. Of course, I do not know how to modify >lm_sensors to get that accomplished. After reading various man pages, I still >do not see a direct way to get it done. > >Cutting to the chase, I first need to be able to WRITE a "START" bit(01h) to >bit 0 of register 40h on the $5000 SMBus(i.e., 0000 0001). That starts the >monitoring and fills the EMC6W201 registers with valuable info, and, according >to the datasheet, makes reading of the registers possible. PRIOR to writing >the START bit the registers are not accessible and any value in them is not >good. ... > >After that, I need to read the registers. First the temps, then later >voltages and fan speeds; finally, control w/b most excellent to have(hey, >dreams _are_ good, :) ). >THE readings needed most are in ($5000) SMBus registers(hex): > >26, diode 1 temp reading, >27, diode 2 temp reading, >28, diode 3 temp reading, >29, diode 4 temp reading, >2A, diode 5 temp reading, and >2B, Ambient >-- All 6 are needed because which is for what is unknown... >The value in those registers are signed, 8-bit, 2's compliment of the >temperature in centigrade ranging from -127*c to 127*c. E.g., a few: >0*c = 0000 0000 >1*c = 0000 0001 >2*c = 0000 0010 >3*c = 0000 0011 >... >25*c = 0001 1001 >... >and so forth. > >Of course I would like to read register 40h to make sure that it is something >I want lm_sensors to write a 01h to before actually doing that. ...sometimes >datasheets and implementations are not the same. GBT assured me that they >followed the SMSC rec's so it should be okay but I would like to proceed >cautiously. I.e., the sensors-detect does find EEPROMs and I do not want to >write there. > >I am not capable of providing an official driver but could possibly tweak and >test some already established code. Curently, I am using openSUSE 10.1-x86_64 >with kernel 2.6.16.13-4-smp. >There is a huge hole in my experience and knowledge about reading and writing >binary/hex to devices on a mainboard. That's probably obvious but I mention >it to emphasize that I know there are steps missing from what I described >above but unless someone takes the time to assist me, I won't know what they >are and could ruin my mobo. So, please, at least, warn me of the shark >infested waters before I go swimming, so to speak. > >HOW can I modify lm_sensors to do those things? > >If lm_sensors cannot be modified please let me know. > >Thanks, :) > >Ric Johnson > > > >_______________________________________________ >lm-sensors mailing list >lm-sensors at lm-sensors.org >http://lists.lm-sensors.org/mailman/listinfo/lm-sensors > >
