* Greg KH (greg@xxxxxxxxx) wrote: > Either. You seem to mention a lot of nested depths in sysfs or "files", > yet your above tree doesn't show that. And I don't understand what you > mean by frontend/backend here either? Is it a sysfs thing? Or a Xen > thing? The files are xenstore, it's part of the communication between frontend and backend. The frontend is the device driver in the guest domain which is just an I/O channel to the backend driver. The backend is in the driver domain where the physical hardware can be driven. thanks, -chris