Date: Tue, 28 Jul 1998 15:54:29 -0400 From: "David W. Alderman" <dave@mmrd.com> To: heller@cdnow.com Cc: ade@lovett.com, mike@smith.net.au, freebsd-stable@FreeBSD.ORG, freebsd-hardware@FreeBSD.ORG Subject: Re: Support for V.90 PCI modems? Message-ID: <35BE2C75.4440B92A@mmrd.com> References: <199807281825.OAA16891@daria.cdnow.com>
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A. Karl Heller wrote: > Do I dare ask how external V.90 modems work then? > Like any other standard modem. There are three basic types of internal modem: 1-Modems that take the full AT command set through a serial chip (or hardware simulacrum thereof). 2-Modems that use the CPU to interpret the AT commands but all codec and compression functions are performed in hardware. 3-Modems that use the CPU to interpret AT commands and some of the codec and compression functions. I believe the original RPI modems were of class 3 above and therefore sucked. Most V.90 Winmodems are actually of class 2 and do not suck as badly as the RPI's. Many internal V.90 modems are class1 and therefore FreeBSD friendly. Most are PnP, though. WARNING: I am not a modem expert. The classes above are strictly my own and made up 3 minutes ago based on my observations of the current consumer modem "scene". YMMV. I do have an external V.90 modem that does not require special software drivers to work. Give it the appropriate AT string and it goes! -- Dave Alderman dave@persprog.com is changing to dave@mmrd.com dwa@atlantic.net -or- dwald@earthlink.net -or- dalderman@compuserve.com -or- dwa@hal.cen.ufl.edu To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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