Dear Rudolf, would have been a nice workaround - if it had had worked :-((( Unfortunately, the line 0x80c1 remains at "48" rather than going "68" when being reprogrammed. Please take a look at the logfile I attached; it is the result of the commands below. Repetitive unloading and loading of all i2c-drivers does not cure the issue. Thank you very much, take care Dieter Jurzitza ********************************* > rmmod i2c-amd756 > isaset -y -f 0x80c0 0x5 > isaset -y -f 0x80c1 0x5 > isadump -y -f 0x8000 ********************************* -- ----------------------------------------------------------- | \ /\_/\ | | ~x~ |/-----\ / \ /- \_/ ^^__ _ / _ ____ / <??__ \- \_/ | |/ | | || || _| _| _| _| if you really want to see the pictures above - use some font with constant spacing like courier! :-) ----------------------------------------------------------- -------------- next part -------------- 0 1 2 3 4 5 6 7 8 9 a b c d e f 8000: 01 04 20 03 01 00 00 00 49 04 63 00 00 00 00 00 8010: 0c 00 00 00 00 00 c3 03 00 00 ff ff 00 00 f0 00 8020: 00 00 00 00 e0 00 00 17 02 00 80 00 01 00 00 f0 8030: 0a 00 00 00 00 00 00 00 38 80 02 00 00 00 00 00 8040: 00 00 00 00 08 00 03 00 00 00 00 00 00 00 00 00 8050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80a0: 00 00 00 00 00 00 00 00 ff 86 00 00 00 00 00 00 80b0: ff 0d 00 00 fa f2 00 00 00 00 00 00 00 00 00 00 80c0: 68 48 20 2c 2c 6c 6c 6c 65 65 44 65 28 4c 20 44 80d0: 65 20 40 40 02 af cd 0f 00 00 00 00 ff ff ff ff 80e0: 00 08 22 00 5a 00 00 00 4e 00 42 00 ff 00 10 10 80f0: 00 00 00 00 20 28 65 65 65 44 44 44 20 20 20 20