On Thu, 11 Apr 2019 19:40:55 +0100, Dreamcat4 wrote: > Hmm. Well! I have no reasonable explanation for this: But it seems > these commands worked now: > > [root:/sys/devices/pci0000:00/0000:00:1f.4/i2c-2] # echo ee1004 0x50 > > /sys/bus/i2c/devices/i2c-2/new_device > [root:/sys/devices/pci0000:00/0000:00:1f.4/i2c-2] # echo ee1004 0x52 > > /sys/bus/i2c/devices/i2c-2/new_device > [root:/sys/devices/pci0000:00/0000:00:1f.4/i2c-2] # > > # dmesg -w > [ 6856.828823] ee1004 2-0050: Currently selected page: 1 > [ 6856.828825] ee1004 2-0050: 512 byte EE1004-compliant SPD EEPROM, read-only > [ 6856.828835] i2c i2c-2: new_device: Instantiated device ee1004 at 0x50 > [ 6870.013347] ee1004 2-0052: Currently selected page: 1 > [ 6870.013349] ee1004 2-0052: 512 byte EE1004-compliant SPD EEPROM, read-only > [ 6870.013364] i2c i2c-2: new_device: Instantiated device ee1004 at 0x52 BTW, whenever you run these commands, please double check (with i2cdetect -l) that i2c-2 corresponds to the i2c-i801 SMBus. Numbering of i2c buses can change depending on which drivers are loaded and in which order. > However still getting the same next error message: > > [id:/sys/bus/i2c/devices/i2c-2] $ sudo decode-dimms > No EEPROM found, try loading the eeprom or at24 module > > Perhaps my perl script 'decode-dimms' is not the newest / fully up to > date? My official ubuntu version is: > > [id:/sys/bus/i2c/devices/i2c-2] $ apt search i2c-tools > Sorting... Done > Full Text Search... Done > i2c-tools/cosmic,now 4.0-2build1 amd64 [installed] > heterogeneous set of I2C tools for Linux > > Tried finding and downloading a newer version of the script, git it from here: > > https://kernel.googlesource.com/pub/scm/utils/i2c-tools/i2c-tools/+/refs/heads/master/eeprom/decode-dimms Official location is: https://git.kernel.org/pub/scm/utils/i2c-tools/i2c-tools.git/tree/eeprom/decode-dimms I don't know why google folks think it's a good idea to duplicate all of kernel.org. Anyway it should be the same file. Hopefully. > Unfortunately there is a different error message now: > > [root:~] # ./decode-dimms.new > Cannot read /sys/bus/i2c/drivers/ee1004/2-0050/eeprom at > ./decode-dimms.new line 2028. > > Not sure what I am supposed to do next Not sure either. I've not seen that specific error before. Once again you should check the last few lines of the kernel log buffer for extra information. Also check the file permissions of /sys/bus/i2c/drivers/ee1004/2-0050/eeprom and see what happens if you read from it yourself: # cat /sys/bus/i2c/drivers/ee1004/2-0050/eeprom > /dev/null -- Jean Delvare SUSE L3 Support
