On Sun, Jan 27, 2002 at 11:14:32PM +1130, Mike Andrew wrote:
> On Fri, 25 Jan 2002 18:45, zohar wrote: > > I want to know how to distinguish between > [snippety hack] > > system) and AT commands of it to use for that. > There's the rub. Winmodems of any kind CANNOT respond to AT commands. They > don't have an embedded controller (or any other controller) in them to > emulate the hayes command set. In what context are you saying that winmodems cannot respond to AT commands? Certainly they must respond to AT commands if they communicate through wvdial as there are several commands involved in the process. I think the misunderstanding is that AT commands are not universal. Almost all modems understand the basic hayes command set (like ATD to dial out, be it ATDT for tone or ATDP for pulse). As Hayes was one of the most popular modem manufacturers some 20 years ago, their instructions have become a standard. However, there is hardly a manufacturer that has not invented at least one AT command specific to its modem. For instance, web page http://www.agere.com/modem/driver.html shows all modem commands recognized by the popular lucent modem. http://www.808hi.com/56k/ltwin9.htm shows something interesting. The Agere page offers AT+GCI= to set the country code. The second page shows us how to do the same with %T19,0, country code in HEX. This teaches us that many AT commands are firmware shortcuts to basic commands that you can type as well if you know the layout of the registers in the modem and what each control bit does to each register. Detailed manuals of the modem usually provide these parameters. In short, if your winmodem responds to some AT commands but not others, it is because you are trying a non-standard command on a modem not carrying the associated feature. [...] > The specs for ANY one of these animals are jealously guarded > secrets of the manufacturer. The so-called 'AMR' modem is nothing more (or > less) than another animal of this breed, a winmodem. In some cases, as with Intel, Lucent and some others, the code is furnished to develop drivers that will allow the modems to work with linux. > > Can I get a complete explanation of the site(s) describing the details > www.linmodems.org for supported linux modems of both types. There are plenty > of references to what winmodems are, there are NO references to how to > program them, nor will it ever eventuate. Perhaps it will. As linux draws more and more users, modem manufacturers may do well to start offering more support for their modems under linux. Let me say this as well. I have one machine here that has a winmodem on it. I didn't go out and buy it to run with linux, I bought it when the machine was still running windows. A few months later I put linux on it and being hard up for cash at the time didn't have enough to go out and spend the equivalent of $120 on a U.S. Robotics external modem. I went through hell getting it to work. Multiple kernel recompiles, you name it...Sure, if you have the option to get an external modem, by all means save yourself a massive headache and get one. But if all you have is a winmodem and the chipset is supported it works well enough. Best Regards, Dallam -- Dallam Wych [EMAIL PROTECTED] 1024: A89A2371 "Ipsa scientia potestas est" 2717 4EB8 461D 743B 47CF Registered Linux User 0D68 C32A 5CDE A89A 2371 counter.li.org:213656 _______________________________________________ Linux-users mailing list - http://linux.nf/mailman/listinfo/linux-users Subscribe/Unsubscribe info, Archives,and Digests are located at the above URL.
