Re: [PATCH v2] USB: cdc-acm: add Whistler radio scanners TRX series support

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Am Montag, den 21.09.2020, 13:36 +0200 schrieb Johan Hovold:
> On Mon, Sep 21, 2020 at 12:29:16PM +0200, Oliver Neukum wrote:

Hi,

> I meant that instead of falling back to "combined-interface" probing we
> could assume that all interfaces with three endpoints are "combined" and
> simply ignore the union and call managementy. descriptors and all the ways
> that devices may have gotten those wrong.

I am afraid we would break the spec. I cannot recall a prohibition on
having more endpoints than necessary. Heuristics and ignoring invalid
descriptors is one things. Ignoring valid descriptors is something
else.

> I was thinking more of the individual entries in the device-id table
> whose control interfaces may not even be of the Communication class. But
> hopefully that was verified when adding them.

Now you are confusing me. In case of a quirky device, why change
the current logic?

	Regards
		Oliver




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