On Tue, May 09, 2006 at 02:53:14PM -0700, Chris Wright wrote: > * Greg KH (greg@xxxxxxxxx) wrote: > > And what are you doing with the different "levels"? Is there some > > description of how you are using sysfs for this? Busses should not be > > "nested", devices should. How does sysfs look with this code in it? > > What is the /sys/bus/ structure? What is the /sys/devices/ structure? > > e.g. > > /sys/bus/xen > |-- devices > | |-- vbd-51713 -> ../../../devices/xen/vbd-51713 > | `-- vif-0 -> ../../../devices/xen/vif-0 > `-- drivers > `-- vbd > |-- bind > |-- unbind > `-- vbd-51713 -> ../../../../devices/xen/vbd-51713 > > /sys/devices/xen > |-- uevent > |-- vbd-51713 > | |-- block:xvda1 -> ../../../block/xvda1 > | |-- bus -> ../../../bus/xen > | |-- devtype > | |-- driver -> ../../../bus/xen/drivers/vbd > | |-- nodename > | `-- uevent > `-- vif-0 > |-- bus -> ../../../bus/xen > |-- devtype > |-- nodename > `-- uevent <snip> > > What is the "frontend/backend" relationship here? > > do you mean in sysfs? or more in general? 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? thanks, greg k-h
