Re: ch341

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>> Okay, I built your usb-linus
>>
>> 46490c347df406b3368680dd911620e52dc7bfa4
>>
>> with the line:
>>
>>    r = ch341_control_out(dev, 0x9a, 0x2518, 0x0050);
>>
>> commented out.  More precisely:
>
>> Loopback works, and also interoperates with pl2303 (through a null
>> modem adapter).
>
> Interesting indeed. The changes in usb-next enabled support for some
> other devices which previously did not work, but hopefully we can find a
> combination that works for all (unless we can reliably determine the
> device-type during probe).
>
> Can you try the below patch on top of my usb-next branch?

With your patch on top of usb-next loopback works (with minicom) but
does not interoperate with pl2303.  I also tried without the baudrate
change, but didn't see a difference.

PS: this testing goes much quicker when I figured out how to rebuild
just the module in question and then rmmod/insmod it. ;-)  I'm
building on an old Core 2 Duo Lenovo ThinkPad W500, a full kernel
build takes about an hour.
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