My team is working on a custom board. We have LTM4676A on it. I'm trying to understand what are the units of measurement for a given register. For example: root@custom-board:/sys/class/i2c-adapter/i2c-1/1-0044/hwmon/hwmon2# ls -l total 0 lrwxrwxrwx 1 root root 0 Apr 12 07:51 device -> ../../../1-0044 -rw-r--r-- 1 root root 4096 Apr 12 07:51 in1_crit -r--r--r-- 1 root root 4096 Apr 12 07:51 in1_crit_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:51 in1_highest -r--r--r-- 1 root root 4096 Apr 12 07:51 in1_input -r--r--r-- 1 root root 4096 Apr 12 07:51 in1_label -rw-r--r-- 1 root root 4096 Apr 12 07:51 in1_lowest -rw-r--r-- 1 root root 4096 Apr 12 07:51 in1_min -r--r--r-- 1 root root 4096 Apr 12 07:51 in1_min_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:51 in1_reset_history -rw-r--r-- 1 root root 4096 Apr 12 07:51 in2_crit -r--r--r-- 1 root root 4096 Apr 12 07:51 in2_crit_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:51 in2_highest -r--r--r-- 1 root root 4096 Apr 12 07:51 in2_input -r--r--r-- 1 root root 4096 Apr 12 07:51 in2_label -rw-r--r-- 1 root root 4096 Apr 12 07:51 in2_lcrit -r--r--r-- 1 root root 4096 Apr 12 07:51 in2_lcrit_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:51 in2_max -r--r--r-- 1 root root 4096 Apr 12 07:51 in2_max_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:51 in2_min -r--r--r-- 1 root root 4096 Apr 12 07:51 in2_min_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:51 in2_reset_history -rw-r--r-- 1 root root 4096 Apr 12 07:51 in3_crit -r--r--r-- 1 root root 4096 Apr 12 07:51 in3_crit_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:51 in3_highest -r--r--r-- 1 root root 4096 Apr 12 07:51 in3_input -r--r--r-- 1 root root 4096 Apr 12 07:51 in3_label -rw-r--r-- 1 root root 4096 Apr 12 07:51 in3_lcrit -r--r--r-- 1 root root 4096 Apr 12 07:51 in3_lcrit_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:51 in3_max -r--r--r-- 1 root root 4096 Apr 12 07:51 in3_max_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:51 in3_min -r--r--r-- 1 root root 4096 Apr 12 07:51 in3_min_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:51 in3_reset_history -r--r--r-- 1 root root 4096 Apr 12 07:51 in4_input -r--r--r-- 1 root root 4096 Apr 12 07:51 in4_label -rw-r--r-- 1 root root 4096 Apr 12 07:51 in4_reset_history -r--r--r-- 1 root root 4096 Apr 12 07:51 in5_input -r--r--r-- 1 root root 4096 Apr 12 07:51 in5_label -rw-r--r-- 1 root root 4096 Apr 12 07:51 in5_reset_history -r--r--r-- 1 root root 4096 Apr 12 07:51 in6_input -r--r--r-- 1 root root 4096 Apr 12 07:51 in6_label -rw-r--r-- 1 root root 4096 Apr 12 07:51 in6_reset_history -r--r--r-- 1 root root 4096 Apr 12 07:51 in7_input -r--r--r-- 1 root root 4096 Apr 12 07:51 in7_label -rw-r--r-- 1 root root 4096 Apr 12 07:51 in7_reset_history -r--r--r-- 1 root root 4096 Apr 12 07:51 in8_input -r--r--r-- 1 root root 4096 Apr 12 07:51 in8_label -rw-r--r-- 1 root root 4096 Apr 12 07:51 in8_reset_history -r--r--r-- 1 root root 4096 Apr 12 07:51 in9_input -r--r--r-- 1 root root 4096 Apr 12 07:51 in9_label -rw-r--r-- 1 root root 4096 Apr 12 07:51 in9_reset_history -r--r--r-- 1 root root 4096 Apr 12 07:51 name drwxr-xr-x 2 root root 0 Apr 12 07:51 power lrwxrwxrwx 1 root root 0 Apr 12 07:51 subsystem -> ../../../../../../../../class/hwmon -rw-r--r-- 1 root root 4096 Apr 12 07:50 temp1_crit -r--r--r-- 1 root root 4096 Apr 12 07:50 temp1_crit_alarm -r--r--r-- 1 root root 4096 Apr 12 07:50 temp1_input -rw-r--r-- 1 root root 4096 Apr 12 07:50 temp1_lcrit -r--r--r-- 1 root root 4096 Apr 12 07:50 temp1_lcrit_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:50 temp1_max -r--r--r-- 1 root root 4096 Apr 12 07:50 temp1_max_alarm -rw-r--r-- 1 root root 4096 Apr 12 07:49 uevent root@custom-board:/sys/class/i2c-adapter/i2c-1/1-0044/hwmon/hwmon2# cat name ltm4676 root@custom-board:/sys/class/i2c-adapter/i2c-1/1-0044/hwmon/hwmon2# cat in1_label vin root@custom-board:/sys/class/i2c-adapter/i2c-1/1-0044/hwmon/hwmon2# cat in1_input 11953 root@custom-board:/sys/class/i2c-adapter/i2c-1/1-0044/hwmon/hwmon2# cat temp1_input 40937 What are the units of in1_input and temp1_input? Are those milli-volts (10^-3 V) and milli-celcius (10^-3 C)? Or these are raw values and I need to do a conversion? LTM4676A and LTM4676 have 2 pages for reporting READ_TEMPERATURE_1 register. How do I change a page value? The LTM4676 driver also doesn't seem to be aware that there should be a READ_TEMPERATURE_2 register. At least I don't see it in sysfs. I tried using a generic driver, pmbus, and here is what I got root@custom-board:/sys/class/i2c-adapter/i2c-1/1-0041/hwmon/hwmon0# ls -l total 0 -r--r--r-- 1 root root 4096 Apr 11 03:04 curr1_input -r--r--r-- 1 root root 4096 Apr 11 03:04 curr1_label -rw-r--r-- 1 root root 4096 Apr 11 03:04 curr1_max -r--r--r-- 1 root root 4096 Apr 11 03:04 curr1_max_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 curr2_crit -r--r--r-- 1 root root 4096 Apr 11 03:04 curr2_crit_alarm -r--r--r-- 1 root root 4096 Apr 11 03:04 curr2_input -r--r--r-- 1 root root 4096 Apr 11 03:04 curr2_label -rw-r--r-- 1 root root 4096 Apr 11 03:04 curr2_max -r--r--r-- 1 root root 4096 Apr 11 03:04 curr2_max_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 curr3_crit -r--r--r-- 1 root root 4096 Apr 11 03:04 curr3_crit_alarm -r--r--r-- 1 root root 4096 Apr 11 03:04 curr3_input -r--r--r-- 1 root root 4096 Apr 11 03:04 curr3_label -rw-r--r-- 1 root root 4096 Apr 11 03:04 curr3_max -r--r--r-- 1 root root 4096 Apr 11 03:04 curr3_max_alarm lrwxrwxrwx 1 root root 0 Apr 11 03:04 device -> ../../../1-0041 -rw-r--r-- 1 root root 4096 Apr 11 03:04 in1_crit -r--r--r-- 1 root root 4096 Apr 11 03:04 in1_crit_alarm -r--r--r-- 1 root root 4096 Apr 11 03:04 in1_input -r--r--r-- 1 root root 4096 Apr 11 03:04 in1_label -rw-r--r-- 1 root root 4096 Apr 11 03:04 in1_min -r--r--r-- 1 root root 4096 Apr 11 03:04 in1_min_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 in2_crit -r--r--r-- 1 root root 4096 Apr 11 03:04 in2_crit_alarm -r--r--r-- 1 root root 4096 Apr 11 03:04 in2_input -r--r--r-- 1 root root 4096 Apr 11 03:04 in2_label -rw-r--r-- 1 root root 4096 Apr 11 03:04 in2_lcrit -r--r--r-- 1 root root 4096 Apr 11 03:04 in2_lcrit_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 in2_max -r--r--r-- 1 root root 4096 Apr 11 03:04 in2_max_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 in2_min -r--r--r-- 1 root root 4096 Apr 11 03:04 in2_min_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 in3_crit -r--r--r-- 1 root root 4096 Apr 11 03:04 in3_crit_alarm -r--r--r-- 1 root root 4096 Apr 11 03:04 in3_input -r--r--r-- 1 root root 4096 Apr 11 03:04 in3_label -rw-r--r-- 1 root root 4096 Apr 11 03:04 in3_lcrit -r--r--r-- 1 root root 4096 Apr 11 03:04 in3_lcrit_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 in3_max -r--r--r-- 1 root root 4096 Apr 11 03:04 in3_max_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 in3_min -r--r--r-- 1 root root 4096 Apr 11 03:04 in3_min_alarm -r--r--r-- 1 root root 4096 Apr 11 03:04 name drwxr-xr-x 2 root root 0 Apr 11 03:04 power -r--r--r-- 1 root root 4096 Apr 11 03:04 power1_input -r--r--r-- 1 root root 4096 Apr 11 03:04 power1_label -r--r--r-- 1 root root 4096 Apr 11 03:04 power2_input -r--r--r-- 1 root root 4096 Apr 11 03:04 power2_label lrwxrwxrwx 1 root root 0 Apr 11 03:04 subsystem -> ../../../../../../../../class/hwmon -rw-r--r-- 1 root root 4096 Apr 11 03:04 temp1_crit -r--r--r-- 1 root root 4096 Apr 11 03:04 temp1_crit_alarm -r--r--r-- 1 root root 4096 Apr 11 03:04 temp1_input -rw-r--r-- 1 root root 4096 Apr 11 03:04 temp1_lcrit -r--r--r-- 1 root root 4096 Apr 11 03:04 temp1_lcrit_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 temp1_max -r--r--r-- 1 root root 4096 Apr 11 03:04 temp1_max_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 temp2_crit -r--r--r-- 1 root root 4096 Apr 11 03:04 temp2_crit_alarm -r--r--r-- 1 root root 4096 Apr 11 03:04 temp2_input -rw-r--r-- 1 root root 4096 Apr 11 03:04 temp2_lcrit -r--r--r-- 1 root root 4096 Apr 11 03:04 temp2_lcrit_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 temp2_max -r--r--r-- 1 root root 4096 Apr 11 03:04 temp2_max_alarm -rw-r--r-- 1 root root 4096 Apr 11 03:04 uevent This one does seem to be aware that there is READ_TEMPERATURE_2 register, but when it comes to READ_TEMPERATURE_1 I see the same problem. How do I know for which page this is reported and what are the units? Any help is appreciated. -- Rail Shafigulin Software Engineer Esencia Technologies -- *ESENCIA TECHNOLOGIES, INC. *2350 Mission College Blvd. Suite #490 Santa Clara CA 95054 ________________________________________________________ Phone: +1 408 736 8284 Fax: +1 408 519 3475 http://www.esenciatech.com <http://www.esenciatech.com/> | http://www.lnttechservices.com <http://www.lnttechservices.com/> -- To unsubscribe from this list: send the line "unsubscribe linux-hwmon" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
