[BRLTTY] SEIKA THDZ 40

[Rob Meredith]

Hi Dave:

I'm not sure if THDZ means Treo in Japanese, but if it does, I never would have figured that out.

The display has only a USB connector. I don't know if it only emulates a PowerBraille 40, or if it has its own protocol. It seems like it would have its own protocol, but the manual isn't telling.

I checked dmesg and /dev, and it is infact showing up as ttyUSB0.

I guess I am now wondering how closely the display emulates the PowerBraille 40, and if something must be sent to the device to switch it into PowerBraille 40 mode. I haven't tried it on Windows yet, but according to the manual, you just tell your screen reader you have a PowerBraille 40, and it works.

Rob

-----Original Message-----
From: brltty-bounces at mielke.cc [mailto:brltty-bounces at mielke.cc] On Behalf Of Dave Mielke
Sent: Monday, September 08, 2008 8:36 PM
To: Informal discussion between users and developers of BRLTTY.
Subject: Re: [BRLTTY] SEIKA THDZ 40

[quoted lines by Rob Meredith on 2008/09/08 at 15:20 -0400]

>Has anyone had any luck getting the SEIKA THDZ 40display to work with BRLTTY?

No, I don't think so. At least, I haven't heard of it.

Why's it caleld a Treo? That implies three of something.

>From what I can tell, this display contains a Silicon Labs CP2102 USB to
>serial converter,

Which way is the adapter connected? Another way of asking what I'm wanting to
know is does it have a serial or a USB port on the outside?

>and is supposed to emulate a TSI PowerBraille 40.

Does it also have its own protocol and/or is it able to emulate anything else,
or is the PB40 emulation the single way it commuicates?

>I tried the following command with no luck:
>brltty -b ts -d serial:/dev/ttyUSB0

Your command is correct, assuming that you're using a USB port on the display.
It's possible, however, that the actual device you should be using is ttyUSB1,
ttyUSB2, etc. Do an ls of /dev with the display disconnected, connect it, wait
a few seconds for udev to settle down, and then do another ls of /dev. If you
redirect the output of those ls commands to two files and then diff them, you
should be able to see which device is actually being used.

--
Dave Mielke           | 2213 Fox Crescent | The Bible is the Word of God.
Phone: 1-613-726-0014 | Ottawa, Ontario   | May 21, 2011, is Judgement Day.
EMail: dave at mielke.cc | Canada  K2A 1H7   | October 21, 2011, is The End.
http://FamilyRadio.com/                   | http://Mielke.cc/bible/
_______________________________________________
This message was sent via the BRLTTY mailing list.
To post a message, send an e-mail to: BRLTTY at mielke.cc
For general information, go to: http://mielke.cc/mailman/listinfo/brltty