On Wed, 9 Oct 2019, Alan Stern wrote: > On Wed, 9 Oct 2019, Bastien Nocera wrote: > > > The kernel currenly has only 2 usb_device_drivers, one generic one, one > > that completely replaces the generic one to make USB devices usable over > > a network. > > Presumably your first driver is in generic.c. Where is the second one? > > > Use the newly exported generic driver functions when a driver declares > > to want them run, in addition to its own code. This makes it possible to > > write drivers that extend the generic USB driver. > > > > Signed-off-by: Bastien Nocera <had...@hadess.net> > > This has a few problems. The biggest one is that the device core does > not guarantee any order of driver probing. If generic.c is probed > first, the subclass driver will never get probed -- which is a pretty > fatal flaw.
I wrote this before reading patch 4/5. So the situation isn't so bad. Alan Stern