Christian Robottom Reis wrote:
> > saying everyone should sell their internal modems, but I find that
> > its easier with external modems because I don't know of any non-
> > standard, external WINMODEMS ( please correct me). They all use
The USB spec. provides for external USB winmodems... Fortunately the
only USB modem I've had the pleasure to test is a nice traditional
fake-the-serial-port variety and works very well.
> No, you're quite right. The basic reason is that WinModems need a good
> fast connection between processor and modem because the processor is
> taking care of the processing-intensive part of the modem's work. PCI
> works great for this, and that's a good reason why using the serial port
> through which externals connect would be a daft idea for cpu-bound junk.
> Serial is lean and mean.
Serial implies some overhead actually, because talking to the 16550A
controller is not particularly lean and mean.
Lucent claim their DSP winmodem, which does most of the processing in
the modem, actually uses less CPU than a serial port driver at
equivalent speed. Seems reasonable.
-- Jamie
-
To unsubscribe from this list: send the line "unsubscribe linux-net" in
the body of a message to [EMAIL PROTECTED]
