> On Mon, Sep 06, 1999 at 07:15:00PM -0400, Ugen Antsilevitch wrote: > > Supporting winmodems > > btw would be nice, although i doubt manufacturers will give us their code. > > That might not be necessary, eventually. I've heard, obliquely, > of a project to develop "open source" modem (data pump) software > that is obviously aimed at these things. It's not rocket science > (well, not to DSP folks), and it is well and truly standardised. > It would be a good final-year EE project in the right school. > Also, since the theoretical limits of the POTS channel have pretty > much been reached with V.34-bis or V.90, it's not even a moving > target any more. No wonder they're cheap now. > > Does anyone know whether there's more to a "WinModem" than a > line hybrid, a codec and a PCI interface?
It depends. Some of them put the DSP on the card, but expect you to do the V.xx encoding in software; others want it all. Note that the DSP part of the work is the easy bit; the rest of the line protocols less so. -- \\ The mind's the standard \\ Mike Smith \\ of the man. \\ msm...@freebsd.org \\ -- Joseph Merrick \\ msm...@cdrom.com To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-hackers" in the body of the message
