Hello, > Please note, the code was not tested. I belive it should work, but it may > do bad things to your HW. On the other hand you want the ATI SMBUS support > :) It looks like it works. There are some informations from my system: [root at home /]# i2cdetect -l i2c-0 unknown SMBus I801 adapter at 0400 Algorithm unavailable [root at home /]# i2cdump 0 0x50 No size specified (using byte-data access) WARNING! This program can confuse your I2C bus, cause data loss and worse! I will probe file /dev/i2c/0, address 0x50, mode byte Continue? [Y/n] 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: 80 08 07 0d 0a 02 40 00 04 50 60 00 82 08 00 01 ??????@.?P`.??.? 10: 0e 04 08 01 02 20 00 60 70 00 00 3c 28 3c 28 40 ????? .`p..<(<(@ 20: 60 60 40 40 00 00 00 00 00 00 00 00 00 00 00 00 ``@@............ 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7c ...............| 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ 90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ f0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ -------------------------------------------------------------- #sensors-detect Probing for `Myson MTP008'... Failed! Probing for `National Semiconductor LM78'... Failed! Probing for `National Semiconductor LM78-J'... Failed! Probing for `National Semiconductor LM79'... Failed! Probing for `National Semiconductor LM80'... Failed! Probing for `National Semiconductor LM85 or LM96000'... Failed! Probing for `Analog Devices ADM1027, ADT7460 or ADT7463'... Failed! Probing for `SMSC EMC6D100, EMC6D101 or EMC6D102'... Failed! Probing for `National Semiconductor LM87'... Failed! Probing for `National Semiconductor LM93'... Failed! Probing for `Winbond W83781D'... Failed! Probing for `Winbond W83782D'... Failed! Probing for `Winbond W83783S'... Failed! Probing for `Winbond W83791D'... Failed! Probing for `Winbond W83792D'... Failed! Probing for `Winbond W83791SD'... Failed! Probing for `Winbond W83627HF'... Failed! Probing for `Winbond W83627EHF'... Failed! Probing for `Asus AS99127F (rev.1)'... Failed! Probing for `Asus AS99127F (rev.2)'... Failed! Probing for `Asus ASB100 Bach'... Failed! Probing for `Winbond W83L784R/AR'... Failed! Probing for `Winbond W83L785R'... Failed! Probing for `Genesys Logic GL518SM Revision 0x00'... Failed! Probing for `Genesys Logic GL518SM Revision 0x80'... Failed! Probing for `Genesys Logic GL520SM'... Failed! Probing for `Genesys Logic GL525SM'... Failed! Probing for `Analog Devices ADM9240'... Failed! Probing for `Dallas Semiconductor DS1780'... Failed! Probing for `National Semiconductor LM81'... Failed! Probing for `Analog Devices ADM1026'... Failed! Probing for `Analog Devices ADM1025'... Failed! Probing for `Philips NE1619'... Failed! Probing for `Analog Devices ADM1024'... Failed! Probing for `Analog Devices ADM1029'... Failed! Probing for `Analog Devices ADM1030'... Failed! Probing for `Analog Devices ADM1031'... Failed! Probing for `Analog Devices ADM1022'... Failed! Probing for `Texas Instruments THMC50'... Failed! Probing for `VIA VT1211 (I2C)'... Failed! Probing for `ITE IT8712F'... Failed! Probing for `ALi M5879'... Failed! Probing for `SMSC LPC47M15x or LPC47M192'... Success! (confidence 6, driver `to-be-written') Client found at address 0x2f Probing for `National Semiconductor LM78'... Failed! Probing for `National Semiconductor LM78-J'... Failed! Probing for `National Semiconductor LM79'... Failed! Probing for `National Semiconductor LM80'... Failed! Probing for `Winbond W83781D'... Failed! Probing for `Winbond W83782D'... Failed! Probing for `Winbond W83791D'... Failed! Probing for `Winbond W83792D'... Failed! Probing for `Winbond W83791SD'... Failed! Probing for `Winbond W83627HF'... Failed! Probing for `Winbond W83627EHF'... Failed! Probing for `Asus AS99127F (rev.1)'... Failed! Probing for `Asus AS99127F (rev.2)'... Failed! Probing for `Asus ASB100 Bach'... Failed! Probing for `Analog Devices ADM9240'... Failed! Probing for `Dallas Semiconductor DS1780'... Failed! Probing for `National Semiconductor LM81'... Failed! Probing for `Analog Devices ADM1029'... Failed! Probing for `ITE IT8712F'... Failed! Client found at address 0x38 Probing for `Philips Semiconductors SAA1064'... Failed! Client found at address 0x50 Probing for `SPD EEPROM'... Success! (confidence 8, driver `eeprom') Probing for `DDC monitor'... Failed! Probing for `Maxim MAX6900'... Failed! Client found at address 0x51 Probing for `SPD EEPROM'... Success! (confidence 8, driver `eeprom') Client found at address 0x69 Some chips are also accessible through the ISA bus. ISA probes are typically a bit more dangerous, as we have to write to I/O ports to do this. This is usually safe though. Do you want to scan the ISA bus? (YES/no): YES Probing for `National Semiconductor LM78' Trying address 0x0290... Failed! Probing for `National Semiconductor LM78-J' Trying address 0x0290... Failed! Probing for `National Semiconductor LM79' Trying address 0x0290... Failed! Probing for `Winbond W83781D' Trying address 0x0290... Failed! Probing for `Winbond W83782D' Trying address 0x0290... Failed! Probing for `Winbond W83627HF' Trying address 0x0290... Failed! Probing for `Winbond W83627EHF' Trying address 0x0290... Failed! Probing for `Winbond W83697HF' Trying address 0x0290... Failed! Probing for `Silicon Integrated Systems SIS5595' Trying general detect... Failed! Probing for `VIA Technologies VT82C686 Integrated Sensors' Trying general detect... Failed! Probing for `VIA Technologies VT8231 Integrated Sensors' Trying general detect... Failed! Probing for `ITE IT8712F' Trying address 0x0290... Failed! Probing for `ITE IT8705F / SiS 950' Trying address 0x0290... Failed! Probing for `IPMI BMC KCS' Trying address 0x0ca0... Failed! Probing for `IPMI BMC SMIC' Trying address 0x0ca8... Failed! Probing for `SMSC 47M15x/192 Super IO Fan Sensors' Success... found at address 0x0800 #lsmod smsc47m1 9552 0 eeprom 7056 0 i2c_isa 2624 0 i2c_i801 8852 0 i2c_sensor 3136 2 smsc47m1,eeprom i2c_dev 10176 0 i2c_core 19416 6 smsc47m1,eeprom,i2c_isa,i2c_i801,i2c_sensor,i2c_dev [root at home linux]# sensors smsc47m1-isa-0800 Adapter: ISA adapter fan1: 0 RPM (min = 640 RPM, div = 8) ALARM fan2: 1050 RPM (min = 640 RPM, div = 8) Best regards, Pavel Ruzicka