Hi Greg, >> I've been working through trying to >> create a virtual bus.
>How does this differ from a "real" bus? None, just there wasn't a real hardware bus (O'Reilly's Linux Device Drivers 3 chapter 14 page 377). >> I've successfuly made it work for a >> single instance but wanted to confirm >> how to create multiple instances of >> the virtual bus. > Why would you need that? We are trying to get the device drivers for the Catweasel MK3/4 cards ready for submission into mainline after repeated requests. However the hardware on it differs greatly in nature so we have serveral fragmented drivers for each specific bit (written by different parties). Naturally they don't play well together. It was thought creating a bus for each pci cmk3/4 card, where the bus deals with bank switching, etc. This allows individual drivers to use newly exported devices fixing the issues we have now. It would also help being this way for debugging, i.e. other parties code can be easily removed. >> I believe to do this you have only >> one instance of your new bus_type >> registered but register multiple >> instances of struct device for it. >> I just wanted to confirm that was >> correct. >That would create multiple devices on >the same bus. Is that what you need >to do? >From your description no. One thing I was however trying to avoid was lots of buses showing under /sys/bus. > Note that you can have multiple trees > of devices, all with the same > bus_type, yet not joined together in > any other way. Odds are, you probably > want to do that, right? Yes. If you still think that is correct given the above are there examples to follow? Regards, Simon ____________________________________________________________________________________ Expecting? Get great news right away with email Auto-Check. Try the Yahoo! Mail Beta. http://advision.webevents.yahoo.com/mailbeta/newmail_tools.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
