Did as you say, the values are changing so i guess the ali bus if fine, i don't know how to force the w83781d using i2cdetec :P -------------- next part -------------- i2cdump 0 0x2d 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 0x2d, mode byte You have five seconds to reconsider and press CTRL-C! 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: b9 bf cf d2 c0 d5 00 cd a7 f8 a5 ac 8c 68 54 f8 ??????.??????hT? 10: a5 f8 a5 30 04 00 00 00 00 00 00 00 00 00 00 00 ???0?........... 20: 6f 6e cf b7 d2 0f 2a 20 72 ff ff 80 67 80 67 e3 on????* r..?g?g? 30: b9 cd a7 ed 9d 40 05 49 22 18 00 02 40 00 00 00 ?????@?I"?.?@... 40: 01 90 00 00 00 ff 00 54 2d 22 01 40 01 00 80 5c ??.....T-"?@?.?\ 50: ff ff 00 ff ff ff ff ff 31 8f 8f 00 e0 48 e2 3f ........1??.?H?? 60: 70 6f cf b7 d1 10 2a 20 72 ff ff 80 67 80 67 e3 po????* r..?g?g? 70: b9 cd a7 ed 9d 40 05 49 22 18 00 02 40 00 00 00 ?????@?I"?.?@... 80: b9 c0 d0 d4 bf d4 00 cd a7 f8 a5 ac 8c 68 54 f8 ??????.??????hT? 90: a5 f8 a5 30 04 00 00 00 00 00 00 00 00 00 00 00 ???0?........... a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 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: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ Tebas:/home/burbu# i2cdump 0 0x2d 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 0x2d, mode byte You have five seconds to reconsider and press CTRL-C! 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: b8 c0 d0 d3 bf d4 00 cd a7 f8 a5 ac 8c 68 54 f8 ??????.??????hT? 10: a5 f8 a5 30 04 00 00 00 00 00 00 00 00 00 00 00 ???0?........... 20: 70 70 d0 b8 d1 10 2b 20 72 ff ff 80 67 80 67 e3 pp????+ r..?g?g? 30: b9 cd a7 ed 9d 40 05 49 22 18 00 02 40 00 00 00 ?????@?I"?.?@... 40: 01 00 00 00 00 ff 00 54 2d 22 01 40 01 00 80 5c ?......T-"?@?.?\ 50: ff ff 00 ff ff ff ff ff 31 8f 8f 00 e0 48 e2 3f ........1??.?H?? 60: 6e 6f d1 b7 d1 10 2a 20 73 ff ff 80 67 80 67 e3 no????* s..?g?g? 70: b9 cd a7 ed 9d 40 05 49 22 18 00 02 40 00 00 00 ?????@?I"?.?@... 80: b9 bf d0 d3 c0 d5 00 cd a7 f8 a5 ac 8c 68 54 f8 ??????.??????hT? 90: a5 f8 a5 30 04 00 00 00 00 00 00 00 00 00 00 00 ???0?........... a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 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: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ Tebas:/home/burbu# i2cdump 0 0x2d 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 0x2d, mode byte You have five seconds to reconsider and press CTRL-C! 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: b9 bf cf d0 bf d4 00 cd a7 f8 a5 ac 8c 68 54 f8 ??????.??????hT? 10: a5 f8 a5 30 04 00 00 00 00 00 00 00 00 00 00 00 ???0?........... 20: 6f 6f cf b5 d2 10 2a 20 72 ff ff 80 67 80 67 e3 oo????* r..?g?g? 30: b9 cd a7 ed 9d 40 05 49 22 18 00 02 40 00 00 00 ?????@?I"?.?@... 40: 01 00 00 00 00 ff 00 54 2d 22 01 40 01 00 80 5c ?......T-"?@?.?\ 50: ff ff 00 ff ff ff ff ff 31 8f 8f 00 e0 48 e2 3f ........1??.?H?? 60: 70 6f cf b8 d1 10 2a 20 72 ff ff 80 67 80 67 e3 po????* r..?g?g? 70: b9 cd a7 ed 9d 40 05 49 22 18 00 02 40 00 00 00 ?????@?I"?.?@... 80: b9 c0 ce cf bf d4 00 cd a7 f8 a5 ac 8c 68 54 f8 ??????.??????hT? 90: a5 f8 a5 30 04 00 00 00 00 00 00 00 00 00 00 00 ???0?........... a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 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: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................