> On 8 Jun 2017, at 13:51, Liviu Ionescu <[email protected]> wrote:
> 
> there are many other FTDI applications out there (I have and use some) which 
> rely on this standard behaviour. what do you think will happen to all these 
> devices if I unload the FTDI kext?

If your other devices aren’t using specifically 2232H chips as serial ports, 
you can use a kext that matches only that VID/PID pair.

> so, the natural question would be: is it possible to access the programming 
> pins via the standard serial port? (in principle, not with existing OpenOCD 
> support).

Not that I’m aware of, but you could try asking on Apple’s USB developer 
mailing list or developer forums.

IMO the right thing would be for device vendors to use a custom VID/PID when 
the FTDI chips are not used as plain serial ports, and supply the necessary inf 
files/kexts/udev rules to map the wanted functionality.

Regards,
Anders
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