Hi Simon, On Wed, 29 Aug 2012 13:53:05 +0100, Simon Tims wrote: > I've spent many hours reading up on patching lm-sensors but I'm either > looking in the wrong place, mis-understanding the patch command, or a > combination! lm-sensors should rarely need any patching of any kind these days. Hardware support is in the kernel, so if anything you likely need to patch your kernel, or a modified standalone driver (easier.) > uname -a reports: > 3.2.0-29-generic-pae #46-Ubuntu SMP Fri Jul 27 17:25:43 UTC 2012 i686 > athlon i386 GNU/Linux > > This is an HP Proliant Microserver N40L. There are a few threads about > this hardware and I see people have got sensors working properly on this > machine, but I can't find how to patch the software correctly. Presumably you refer to: http://marc.info/?l=linux-i2c&m=133033220527043&w=2 (At least I think this is the latest version of the patch... Not sure.) > Here's my sensors-detect: > > # sensors-detect revision 5984 (2011-07-10 21:22:53 +0200) > # System: HP ProLiant MicroServer > (...) > Next adapter: SMBus PIIX4 adapter at 0b00 (i2c-0) > Do you want to scan it? (YES/no/selectively): > Client found at address 0x18 > Handled by driver `jc42' (already loaded), chip type `jc42' > Client found at address 0x50 > Probing for `Analog Devices ADM1033'... No > Probing for `Analog Devices ADM1034'... No > Probing for `SPD EEPROM'... Yes > (confidence 8, not a hardware monitoring chip) > Probing for `EDID EEPROM'... No I suppose this is without the patch, otherwise you'd have more SMBus channels listed. > Now follows a summary of the probes I have just done. > Just press ENTER to continue: > > Driver `jc42': > * Bus `SMBus PIIX4 adapter at 0b00' > Busdriver `i2c_piix4', I2C address 0x18 > Chip `jc42' (confidence: 6) This is the thermal sensor chip on your DDR3 SDRAM memory module. > > Driver `to-be-written': > * ISA bus > Chip `IPMI BMC KCS' (confidence: 8) Means you may be able to get monitoring information with ipmitool instead of sensors. If your system has a BMC, that is. > (...) > Here's the output of sensors: > > jc42-i2c-0-18 > Adapter: SMBus PIIX4 adapter at 0b00 > temp1: +30.5°C (low = +0.0°C) ALARM (HIGH, CRIT) > (high = +0.0°C, hyst = +0.0°C) > (crit = +0.0°C, hyst = +0.0°C) > > k10temp-pci-00c3 > Adapter: PCI adapter > temp1: +31.5°C (high = +70.0°C) > (crit = +100.0°C, hyst = +95.0°C) > > > With help from Eddi De Pieri I got to this post: > > http://www.spinics.net/lists/linux-i2c/msg07284.html > > but I can't establish the exact process. I was able to download the new > sensors-detect binary, set it executable and run it. I get these results: You shouldn't need any modification to sensors-detect, the ProLiant MicroServer issue is related to SMBus multiplexing, this is handled in the kernel. Plus this version of sensors-detect includes Gentoo-specific changes, so it's no surprise you get errors on Ubuntu. > The threads I've read seem to mention patching an i2c driver, which I can't > find on my system. The driver is i2c-piix4. On your system it should be at: /lib/modules/3.2.0-29-generic-pae/kernel/drivers/i2c/busses/i2c-piix4.ko If not, it means that the driver is built into a kernel rather than as a module. You can check with: $ zgrep I2C_PIIX4 /proc/config.gz "=m" means module, "=y" means built-in. > Can anyone tell me exactly what process I need to follow? Or where I > should ask if this list is the wrong place? If i2c-piix4 is built into your kernel as you seem to imply, then you can't replace it with a standalone driver, meaning the easy path isn't possible. You need to patch the kernel tree and rebuild the kernel, which isn't an easy process for the non-initiate. I hope to find some time to finally review the patch in question so that it can get upstream and things just work for users out of the box. But I am just back from vacation with a lot of stuff in my mailbox so it will take some time before I get there. -- Jean Delvare _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
