Hello everyone, I previously asked these questions to Greg privately email, but he asked me to email the list so everyone could see. I've since learned the answers (I think..) but will still pose them here:
1) If I have a USB composite device with say, four interfaces, I wanted to know if I could load four different drivers / kernel modules for the device -- one per interface. I believe you can, since each USB kernel module will have its registered probe() function called for each interface that arrives on the system, and each can decide whether it wants to claim the interface or not. 2) I then asked if I had a USB composite device with four interfaces, but the first two are CDC ACM -- what would happen? In this case, one driver needs to be loaded for *two* interfaces, and two more drivers for the other two -- this also seems to work "out of the box". Any clarifications / confirmations welcome. As I mentioned to Greg, my previous frame of reference is Windows where case #1 will work using the generic parent "bus" driver but #2 will not. By the way, as I've been doing development, I've noticed that various constructs seem to disappear from the kernel on a regular basis (i.e. members of structs, function exports from inside the kernel, etc.) This tends to lead to "surprises" when maintaining a driver that is outside of the tree. Can we safely assume that when any symbols, etc. disappear, the functionality they represented is still available through some other method? -Chris ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
