My attempts to execute simple "AT" commands result in utter silence from the
modem.  I suppose that could be flow control lines, but somehow I doubt it.
Of course, I'm blindly assuming the modem is "Hayes compatible".

I understand there is an interrupt latency issue which relates to ppp.
People should not assume that this explains all network and serial port
problems.  As I understand it, the problem is with soft interrupt delivery.
This does not affect "normal" usage, it ONLY affects kernel implemented ppp.
Has anyone tried running a userland ppp implementation?

Gregory


> -----Original Message-----
> From: Henry B. Hotz [mailto:hotz@jpl.nasa.gov]
> Sent: Thursday, July 26, 2001 6:57 PM
> To: mw@blobulent.com; Greg Kritsch
> Cc: 'port-macppc@netbsd.org'
> Subject: Re: pcmcia/cardbus support
> 
> 
> At 9:21 AM -0700 7/26/01, Michael Wolfson wrote:
> >At 12:00 PM -0400 7/26/01, Greg Kritsch wrote:
> >:)How about the internal modems on the G4 PowerMacs?  I have 
> an (AGP graphics)
> >:)and a (digital audio), and I'd love to be able to use the 
> modems.  Does
> >:)anyone have any idea what the problem is even?
> >
> >Got me.  Anyone else?
> 
> Bill Studenmund reported once ages and ages ago that he could access 
> the serial port used by the modem inside OF.  Someone sells an 
> adapter that replaces the modem card with a mini-DIN-8 Mac serial 
> connector.
> 
> More recent scuttlebut on this list is that serial ports don't work 
> right on macppc.  I believe the problem is how the handshaking/status 
> lines are handled rather than "ordinary" data transfer.
> 
> 
> Cross my heart, strike me dead, stick a lobster on my head.
> John Crichton -- Farscape, 6/15/01
> h.b.hotz@jpl.nasa.gov, or hbhotz@oxy.edu
>