Re: Device with two interfaces - what is the probing order?

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On 29/03/2024 13:47, Greg KH wrote:
> On Fri, Mar 29, 2024 at 01:36:18PM +0200, Bitterblue Smith wrote:
>> On 28/03/2024 22:05, Alan Stern wrote:
>>> On Thu, Mar 28, 2024 at 09:08:43PM +0200, Bitterblue Smith wrote:
>>>> Hi all,
>>>>
>>>> Given a USB Wifi device with two "identical" interfaces,
>>>> in what order are the interfaces probed? Is the order guaranteed?
>>>
>>> They are probed in the order that they are listed in the 
>>> Get-Config-Descriptor output.  But this is not guaranteed.
>>>
>>> Alan Stern
>>
>> Is it guaranteed that they are probed one at a time, not in parallel?
> 
> Yes, all USB probes are in sequence.
> 
>> Oh, and what about the disconnect function? Is that guaranteed to be called not in parallel?
> 
> Yes.
> 
> hope this helps,
> 
> greg k-h

That's very helpful. Thank you both.




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