As Khali implied, it's unlikely that the drivers in our tree are up-to-date, check w/ the PPC mailing lists. Nobody is working on slave mode to our knowledge. Sounds like you already found the relevant emails. Jean Delvare wrote: > > > I am working with a powerpc 405 chip, which supports both master and > > slave in the hardware. The linux distribution is Montavista Hardhat. > > > > 1) The i2c files i2c-algo-ibm_ocp.h, i2c-algo-ibm_ocp.c, and > > i2c-adap-ibm_ocp.c were written by Montavista. Unfortunately, they do > > not support slave mode. Has anyone outside Montavista added > > functionality to this code? Does Montavista provide updates often (it > > appears the code with the Montavista distribution has significant > > modifications over what is distributed with i2c, unfortunately I do > > not have the code available to me now)? > > According to the CVS logs, there were no updates from Montavista since > the initial commit back in July 2002. If there are changes that should > make their way to our repository, please let us know. > > > 2) Has anyone successfully insmoded the i2c-algo_ibm_ocp and > > i2c-adap-ibm_ocp modules together? Insmod complains about recursive > > includes (which is true, the files call on functions in the other > > file) when loading either module. > > This requires specific hardware we don't have, so it is unlikely any of > us could try these modules. From my understanding, the adapter needs the > algorithm, and not the other way around. That's the way it seems to work > in our version of the driver. Maybe you could give it a try? > > > 3) There have been several inquiries about using a host/bus in slave > > mode. Has anyone done work on this since the postings? Are their > > plans to implement this at some point? What would be required to add > > slave functionality to the core i2c files? > > I don't think anyone worked seriously on this. Anyway, this is far over > my knowledge, so I can't help. > > -- > Jean Delvare > http://www.ensicaen.ismra.fr/~delvare/
