Re: Linux USB-Serial and DSR flow control

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On Wed, Jun 28, 2017 at 08:57:10PM +0200, Zaerc wrote:
> 
> On 2017-06-27 10:00, Johan Hovold wrote:
> 
> > Sure, thanks. I'll send you my address. I assume the firmware is free
> > software?
> 
> Cool, you're welcome.  As it's just a modified version of the LUFA 
> USBtoSerial example project, it will be under the same MIT license.  I 
> prefer GPL myself, but close enough I reckon.

Ok, nice.

> > Yes, this shows the notification being split up in two transfers (due 
> > to
> > the endpoint size of 8 bytes), something which wasn't supported by the
> > driver before 4.12.
> 
> Ah, now I understand the problem.
> 
> >>          wMaxPacketSize     0x0008  1x 8 bytes
> > 
> > So here's the source of the issue.
> 
> That sounded like something I could fix on my end.
> 
>          wMaxPacketSize     0x0010  1x 16 bytes
> 
> Lo and behold, now it works on older kernels just as well!

That's great. 

> Thanks again for lending me your keen eye.  I need to get some other 
> unrelated stuff out of the way (and order a few parts I'm out of) so I 
> can make a board for you and then it's time to document so that people 
> can make their own.

Sounds good, and thanks again!

Johan
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