[vbox-dev] Oracle VM VirtualBox is not supporting The Tieman braille voyager Braille display

Jean-Philippe MENGUAL mengualjeanphi at free.fr
Tue Apr 2 14:46:57 PDT 2013


Only to try understanding better your case: can you confirm that your host is
Windows XP? Then, what's your guest OS? What screen reader do you use on the
guest? Does your problem happen when you try using your braille display in the
guest or only in the GUI interface of VirtualBox on the host?

I think some log of VBoxManage list usbhost could be useful. What methods have
you tried to connect the display: filters? usbattach? I think 1st, it's useful
to understand what happens on the guest, then developpers will try to see
how VBox emulates your device.

Thanks for your details.



On mardi 02 avril 2013 à 20:23:35 (+0200), Mgr. Janusz Chmiel wrote:
> Dear core developers,
> My name is Janusz Chmiel.
> I AM visually impaired user.
> Yours product is working excellently for me, except situation, when my 
> Braille device Tieman Braille Voyager connected through The USB port is 
> being used with Windows XP SP3 Professional edition.
> The development facts
> Braille device is sending special signal when buttons placed on it are 
> being pressed.
> Windows Xp can not receive The information, which button have been 
> pressed. So device can receive The data, can communicate with program 
> and .sys driver, but buttons are not usable.
> No matter, if i Am running Windows XP as a host operating system and if 
> i Am inside this operating system, or if i leave it and if i run Windows 
> 7 primary operating system, from which Oracle VM VirtualBox is running.
> So The issue is, that user is helpless while using buttons to control 
> The program, which is communicating with Braille device.
> Programs can not get feetback from The braille device buttons.
> Would somebody of Yours excellent development team try to help me to 
> solve this complex issue?
> Which information You would like to know to debug this complex problem?
> For now, i Am sending You some Oracle VM VirtualBox .log files, may be, 
> that somebody of us would try to analyse it for results.
> I Am using Brltty for Windows with libusb-win32 to communicate with 
> Tieman Braille Voyager Braille display connected by using USB port.
> Here are some .log files.
> https://dl.dropbox.com/u/15279728/Logs.zip
> Brltty for Windows can be directly downloaded from this direct link.
> http://brl.thefreecat.org/brltty/brltty-win-4.3-4.exe
> I can confirm, that this problem is really caused by The relationship 
> between Oracle VM virtual Box and Windows XP operating system.
> I will debug it with Windows 8 as a primary OS and With Windows 7 SP1 
> X86 as A primary OS to.
> Do You think, that somebody of us would try to give me some piece of 
> advice how to solve this complex informatics phenomena?
> Thank You very much for Yours developers help.
> With kindness regards.
> Janusz Chmiel
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