Hi Beat, > > You certainly mean 48h. > > The manual of the wrap board says the following: > > The LM77 thermal sensor sits on the secondary I2C bus, at address 90h. And it's wrong. They're confusing the first byte sent in a write transaction ((48h << 1) + 0 = 90h) with the 7-bit address of the device (0x48). That's a common mistake. > > You need a bus driver for the I2C bus the LM77 chip is connected to. > > This driver is not already available? How can I identify the bus? > How to I setup a bus? > > I've seen that in openbsd there is support for LM77 and Nationl Geode > SC1100. > Could we have a clue from there? I don't have BSD so I cannot > identify in which packages this stuff is ... I don't know, I've never worked with such boards before. > I'm trying since days to connect to the national web site with no luck > ... Try the AMD website. National Semiconductor sold their Geode buisness to AMD some years ago. -- Jean Delvare