On Thu, Jan 24, 2013 at 11:10:16AM +0100, Jean Delvare wrote: > On Thu, 24 Jan 2013 11:01:37 +0100, Robert Smith wrote: > > Thanks, > > > > My motherboard is an Intel DX58SO. I have read the documentation and it > > doesn't mention a header but it does mention that the SMBus is routed to > > the (single) PCI slot. > > OK. > > > I understood that SMBus is a multi master bus? certainly my plans rely on > > this. > > > > "SMBus is a two-wire multi-master bus, meaning that more than one device > > capable of controlling the bus > > can be connected to it." > > > > from section 2 'Characteristics' of: > > > > http://smbus.org/specs/smbus110.pdf > > Ah, my bad, I thought SMBus had stripped off the multimaster capability > of I2C but clearly I'm wrong, sorry. > Still needs a multi-master capable controller, though. Many multi-master systems use bus master selectors such as PCA9541 to avoid the pitfalls of multi-master access (such as one master blocking the bus). Actually, thinking about it, I never encountered a multi-master system without similar protection. Guenter _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
