[systemd-devel] WebUSB

[Lars Knudsen]

It seemed like if just one interface in the description list was somehow
compliant with modem manager, the full device seemed claimed.

I may have missed something in my headers while experimenting. Can you give
an example of a header structure that will not be assumed to be a modem by
MM while still accessible as a proper CDC serial device - without
blacklisting anything?

BR
Lars

On Jan 9, 2017 18:13, "Bjørn Mork" <bjorn at mork.no> wrote:

Greg KH <greg at kroah.com> writes:
> 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,

I fail to see why a quirk should be necessary. New device classes are
expected to use new class/subclass codes distintly different from
anything handled by existing class drivers.


Bjørn
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