[time-nuts] USB problems and solutions - Some what Off Topic

Attila Kinali attila at kinali.ch
Sat May 30 04:05:23 EDT 2015


On Fri, 29 May 2015 23:50:16 +0200
Gerhard Hoffmann <dk4xp at arcor.de> wrote:

> Some months ago, one manufacturer distributed new drivers via the 
> Microsoft channel
> that recognized non-original chips and changed the inappropriate 
> manufacturer code
> in their flash to UNDEFINED. Thus, even going back to the old driver did 
> not make the
> false chip work again since the original driver felt no longer 
> responsible for the fake chip.

Yes, this was FTDI, and actually it was worse. 
It set the USB device ID to 0 for non-genuine FTDI chips, which is an
illegal value. Because of this, windows wouldn't enumerate them anymore
and thus they couldn't be used at all (until reprogrammed with some
special hardware).

Due to the huge backlash that driver version was not around for
very long (IIRC a couple of days only).

				Attila Kinali

-- 
< _av500_> phd is easy
< _av500_> getting dsl is hard


More information about the time-nuts mailing list