USB Serial Devices and Speakup

Igor Gueths igueths at
Sun Oct 31 18:46:06 EST 2004

Hash: SHA1

Ah...What you have there is a VGA connector. Used to output stuff to an external CRT monitor from the laptop.
On Sun, Oct 31, 2004 at 01:13:59PM -0800, Zachary wrote:
> I'd appreciate it if you could attempt to get the thing to work.  Right 
> now, it's all I've got to work with.  At first, I thought the port on my 
> laptop was merely a female serial port.  No problem if that was the case, I 
> could buy a male to female converter.  But it's some sort of video 
> interface.
> So, right now I'm sort of stuck working with a synthesizer that won't 
> speak. Not being a skilled programmer, I can't say what should be done to 
> fix this.
> Unless, by some chance, the softsynth device will work with my sound card? 
> I highly doubt this, I don't know if it's even included in the install 
> kernel.
> Thanks,
> Zack
> ----- Original Message ----- 
> From: "Gregory Nowak" <greg at>
> To: "Speakup is a screen review system for Linux." <speakup at>
> Sent: Sunday, October 31, 2004 12:40 PM
> Subject: Re: USB Serial Devices and Speakup
> >Hash: SHA1
> >
> >As far as I know, speakup will not drive a synth connected via a
> >serial to usb converter. This is because the addresses used by usb are
> >different then the addresses used by standard serial ports. There is
> >also the fact that the uarts in serial to usb converters differ from
> >the standard 16550a uart in a standard serial port as far as I know.
> >
> >Since cvs speakup is now modularized, I was wondering for some time
> >now if it might not be possible to drive a usb to serial connected
> >synth, assuming that the synth driver in question was loaded as a
> >module after the usb system came up, and if the serial synth module
> >could accept i/o addresses as arguments. There would  of course be the
> >problem of the different uarts, although I suspect that could be dealt
> >with in some way as well. How about it Kirk? Would this be possible to
> >implement? If so, then I just might play with speakup serial code, and
> >see what I could figure out.
> >
> >Greg
> >
> >
> >On Sun, Oct 31, 2004 at 11:33:26AM -0800, Zachary wrote:
> >>Hi,
> >>I've given up with the keypad on my desktop, and anyway my laptop has got 
> >>a
> >>hard drive to spare.
> >>I'm wondering how Speakup will recognize a Dectalk Express connected via 
> >>a
> >>USB serial adapter?  My laptop doesn't have any built in serial ports, 
> >>and
> >>so I have to use an adapter.
> >>Do I have to supply extra Kernel options to get it to boot?  If not, how
> >>can I start speech after the Kernel has detected the USB device? 
> >>Assuming,
> >>of course, that it supports it.
> >>Thanks,
> >>Zack
> >>
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