USB Serial Devices and Speakup
janina at rednote.net
Sun Oct 31 19:04:30 EST 2004
If you have a spare PCI (or ISA) slot, a serial port or two is not an
Gregory Nowak writes:
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> 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.
> 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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Janina Sajka, Chair
Free Standards Group (FSG)
janina at freestandards.org Phone: +1 202.494.7040
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