Re: [PATCH 0/2] Add a skeleton module to perform a basic initialization on certain USB devices

From: Greg KH
Date: Sun Jan 24 2016 - 17:48:30 EST

On Sun, Jan 24, 2016 at 11:05:05PM +0100, Oliver Neukum wrote:
> On Sat, 2016-01-23 at 08:39 -0800, Greg KH wrote:
> > Have your program install a udev rule to make it run automatically
> > when
> > the device is plugged in, and then just file a bug with the different
> > distros to have them pick up your program and add it to their
> > releases.
> > With free services like Github to host the code, and OBS to build
> > packages for every different distro out there, there has never been an
> > easier time to get programs to distros.
> >
> > So please just do this in userspace, we don't like to take kernel
> > drivers for functions that can be done in userspace.
> That raises a point. If we wish to do port power switching
> as a form of runtime PM, we will need to do mode switching
> in kernel space. The notion that this can be done in user space
> is likely to become wrong as things develop.

Maybe, if a device doesn't remember it's "mode" after sleeping, then it
might get messy, it will be interesting to see how that works out over