05/12/2017 14:56, Tan, Jianfeng: > > On 12/5/2017 4:41 PM, Thomas Monjalon wrote: > > > > 05/12/2017 09:27, Tan, Jianfeng: > > > > > > > > > > On 12/4/2017 5:31 PM, Thomas Monjalon wrote: > > > > > > > > > > > > The hook is in bus->scan(). > > > > > > I think we should launch a bus scan when there is a new device event. > > > > > > > > > > That's what I'm trying to say. We finally need to execute a handler as > > > > > of a device event to finish the job. > > > > Please be more specific, I am not sure to understand. > > > > By the handler, I mean when we monitor the udev by select/poll/epoll and > device uevents come, the application will execute a handler (or just a > function) for each of such uevent. Then why not adding the vdev there?
Because it must work for hotplug, and initial scan too. We can also think to application requiring a manual scan. The bus scan is the right place to have every scans called. That's simple.