On Sat, Dec 16, 2017 at 06:07:42PM -0500, Thor Lancelot Simon wrote: > On Fri, Dec 15, 2017 at 08:30:00PM +0100, Martin Husemann wrote: > > - when libusb takes over controll (as Steffen described) a kernel driver > > that would have attached (i.e. when the skipping does not happen or > > the userland application is configured wrong) is detached, so no > > concurrent access between libusb and a kernel driver can ever happen > > To be safe in general -- particularly for storage devices -- this probably > has to depend on securelevel.
Yes, and if e.g. a device is open it should reject the request to transform into a usbgen. Martin