[systemd-devel] WebUSB

[Greg KH]

On Mon, Jan 09, 2017 at 11:29:24AM +0100, Aleksander Morgado wrote:
> On Mon, Jan 9, 2017 at 11:07 AM, Greg KH <greg at kroah.com> wrote:
> > On Mon, Jan 09, 2017 at 09:40:59AM +0000, Kenneth Rohde Christiansen wrote:
> >> Web USB can only grab devices which has special Web USB headers. It can not
> >> grab any USB device.
> >>
> >> https://wicg.github.io/webusb/#webusb-descriptors
> >
> > Ah, fun :(
> >
> > So, we can add a quirk into the kernel cdc-acm driver to never bind to a
> > device that has the wusb platform capability descriptor, which will
> > prevent you from having to disconnect the driver from the device (and
> > the permissions issues involved in that.)
> >
> > Would that help out?
> >
> > And just do the same thing in modem manager, never grab a device with
> > this descriptor, and let the browser/webusb handle the control of the
> > device if it so desires.
> 
> Not sure anything would be required in ModemManager if the kernel
> already skips the binding to cdc-acm; i.e. ModemManager won't do
> anything unless the TTY is exposed.

Great, that was easy then!

So, who is going to send in the kernel patch for this? :)

thanks,

greg k-h