[BRLTTY] Re: [Bug 84139] Re: Arduino detected as braille device

[Jason White]

On Fri, Feb 09, 2007 at 10:33:22AM +0100, Samuel Thibault wrote:
> Colin Watson, le Fri 09 Feb 2007 09:18:12 -0000, a ?crit :
> > # HandyTech
> > SYSFS{idVendor}=="0921", SYSFS{idProduct}=="1200", RUN+="/lib/brltty/brltty.sh -b ht -d usb:"
> > SYSFS{idVendor}=="0403", SYSFS{idProduct}=="6001", RUN+="/lib/brltty/brltty.sh -b ht -d usb:"
> > 
> > These come from Debian.
> 
> Ah oops, indeed, I overlooked that. It's in the brltty repository too,
> so I'm Ccing the mailing list: a Ubuntu user just wanted to plug a
> special USB adapter (not related to braille at all), and brltty got
> started, because the ID of his adapter is
> 
> Bus 002 Device 005: ID 0403:6001 Future Technology Devices International, Ltd 8-bit FIFO
> 
> > "8-bit FIFO". What's one of those? Sounds like maybe a generic bit of
> > electronics that sometimes happens to have a Braille terminal attached?
> 
> Possibly. Does anybody on the brltty list have more information on this?

There was a similar problem fixed in BRLTTY last year: some Handytech displays
were using a USB->serial chip without changing the vendor/product ID to make
it unique to the braille display. Code was introduced into BRLTTY to work
around this, but the serial adapter involves wasn't the same as the one
reported above.

I know this doesn't solve it, but I hope it at least helps to narrow down the
problem. The next question is whether that fix was generic or just a
work-around for the particular case, and which version of BRLTTY it went into.