> Just a side note as you are talking about address ranges and the > like here: Please keep in mind that there is a world outside smbus > which also uses i2c and where your assumtions are not nessesarely > correct even if they are for smbus. I do know that and keep it in mind. However, I obviously don't know the audio and video side of I2C as good as you do. The non-smbus chips I thought about are the ones which are part of the lm_sensors project (A/D and D/A converters, multiplexers, lcd displays, switches). Do you know of any chip on you side using an address in the 0x30-0x3F or 0x50-0x5F ranges? If there are, I would need to know what they are and how much they like quick writes and byte reads, so that I can refine my changes. As a side node, I don't expect people to run sensors-detect on video-dedicated i2c busses... > Reportly some DVB card frontends are reacting very sensitive to the > lm_sensor probes. .but I am obviously wrong ;) Any chance you could provide more details about how bad it goes? Maybe the change I am planning to do could improve this too. Thanks. -- Jean Delvare http://www.ensicaen.ismra.fr/~delvare/