Philip, On Tue, 25 Jan 2011 18:52:11 -0500, Phillip Susi wrote: > On 01/25/2011 11:42 AM, Jean Delvare wrote: > > Probably because you run a distribution where someone stupidly > > blacklisted i2c-i801 because it caused trouble on one single machine > > once. And you should report this as a bug. > > Good call. > > > All recent desktop boards from Asus implement an ACPI device named > > ATK0110 for hardware monitoring, which is supported by the asus_atk0110 > > driver. So if all you are interested in is hardware monitoring, that's > > the way to go. > > That would show up in /sys/bus/acpi/ATK0110 right? I don't seem to have > it, nor any mention of "ATK" in the DSDT. It also looks like the DSDT > does not define the smbus interface. It would show up as: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:03/ATK0110:00 /sys/bus/acpi/devices/ATK0110:00 or similar. BTW, what kind of hardware monitoring and/or fan control features does your BIOS offer? > > If you really want a complete analysis of what may be on your SMBus, > > please share the output of i2cdetect with us. You can get register > > dumps from most devices using i2cdump, however I would NOT recommend > > doing this on all addresses randomly, as some devices are known to > > misbehave when accessed in a way they do not expect. > > 0 1 2 3 4 5 6 7 8 9 a b c d e f > 00: -- -- -- -- -- 08 -- -- -- -- -- -- -- > 10: -- -- -- -- -- 15 -- -- -- -- -- -- -- -- -- -- > 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- > 40: -- -- -- -- 44 -- -- -- -- -- -- -- -- -- -- -- > 50: 50 -- 52 -- -- -- -- -- -- -- -- -- -- -- -- -- > 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- 6e -- > 70: -- -- -- -- -- -- -- -- > > I am guessing that 50 and 52 are the SPD eeproms on my dimms, Correct. > but what could the others be? 08 and 44 are SMBus internal addresses, i.e. not real chips. This leaves 15 and 6e, which do not correspond to anything I know. Sensors-detect does not even scan them. > Also sensors-detect did not identify them as SPD > eeproms. I loaded the eeprom module and looked at the data it pulled > out of them and it does appear to contain an ascii string that is the > part number of the dimms, but decode-dimms does not seem to like it. This is strange. Can you please send me a dump of these SPD EEPROMs? # modprobe i2c-dev # rmmod eeprom # i2cdump <bus_nr> 0x50 b > /tmp/eeprom-0x50.dump # i2cdump <bus_nr> 0x52 b > /tmp/eeprom-0x52.dump where <bus_nr> is the I2C bus number of your Intel SMBus. Back to your hardware monitoring issue, Asus tends to use the integrated sensors in the Super-I/O on desktop boards. So odds are that you have a very recent Super-I/O chip sensors-detect doesn't know. From pictures found on the web, it seems to be a Nuvoton NCT6776F, for which we indeed have no support yet. -- Jean Delvare http://khali.linux-fr.org/wishlist.html -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
