using serial port locked by Speakup (was: Re: Speakup and VMWare)

Littlefield, tyler compgeek13 at
Tue Feb 20 07:51:30 EST 2007

I think you're running into a kernel issue here.
What I think the main issue is, is a generic m$ issue.
Winblows nt, especially xp, in an attempt to try to get people to be kernel
safe decides to lock everyone out, which means you have to go through the
kernel to do anything.
VmWare may be able to simulate things, but it may not be able to go down to
the hardware abstraction layer, which is what you may need if your going to
the serial port.
Tyler Littlefield
(888) 767-3893
msn: compgeek134 at
aim: st8amnd2005
skype: st8amnd127
----- Original Message -----
From: Monty Lilburn <monty-speakup at>
To: Speakup is a screen review system for Linux. <speakup at>
Sent: Tuesday, February 20, 2007 3:09 AM
Subject: using serial port locked by Speakup (was: Re: Speakup and VMWare)

> Hello,
> Thanks to Greg and Tyler for suggestions on how to essentially allow
> bi-directional communications directly to a Dectalk Express while Speakup
> active.  Unfortunately, I still am not having success.
> For others who may be reading this, I am specifically trying  to allow
> XP that I have running with VMWare on my Debian box with Speakup compiled
> the kernel to access /dev/ttyS0 which is currently locked by Speakup.
> For  VMWare configuration reasons, I can't seam to use /dev/synth, and
>   I can send data to /proc/speakup/direct_synth, I can not receive data
(such as
> indexing info back through that method).  At this point it would really
> that I need to be able to  use /dev/ttyS0 even while locked by speakup.
> I tried Tyler's suggestion of executing:
> setserial /dev/ttyS0 uart 16550a
> And, although the command executed fine, it didn't seam to make a
> difference.  Have you had success with this?  If so, at what point do you
> run setserial?  Prior to running vmplayer or after Windows is up?
> If anyone has thoughts on how to get this working that would be much
> appreciated. Even if you haven't played with VMWare, the general problem
> just being able to echo  (and receive) data to the serial port in use by
> Speakup
> BTW:  I plan on writing a HowTo on my experiences of getting VMWare
> with  Debian plus a successful unattended instalation of Windows XP.
> Thanks for the help
> Best regards,
>    Monty
> On Sun, 18 Feb 2007, Tyler Spivey wrote:
> > Hash: SHA1
> >
> > To access the dectalk express, you need to either connect it to another
> > serial port, or fool linux into releasing the port that speakup is
> > using. try:
> > setserial /dev/ttyS0 uart 16550a
> > I don't have a linux machine atm to test that on, but it should work.
> > just echo anything that the dectalk can speak to it to make sure, and
> > make sure that speakup and window eyes don't try to use the same synth -
> > interesting results can occur.
> >
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> >
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> > =Xc6n
> > -----END PGP SIGNATURE-----
> >
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