On Sun, 23 Jul 2000, Tomasz Barszczak wrote:
> Hi, > > I have just installed slink on my AMD Athlon PC. > I have an internal USR 56K modem model 2977. > It is not a winmodem, it uses Hayes AT language. > Under Windows 98 it is recognized at COM5 and works fine. > > First problem was that in /dev there were only ttyS0-ttyS3 (COM1-COM4) > with major number 4 and minor numbers 64-67. > I have created by hand ttyS4-ttyS7 character devices with minor numbers 68-71, > and same owner, group and permissions and ttyS0-ttyS3. > I hope they correspond to COM5-COM8. > > However when I run minicom with /dev/ttyS4 I cannot talk to the modem. > It does not respond to "at", pressing enter, etc., no characters are echoed. > > wvdialconf scans my serial ports, finds active ports at ttyS0 and ttyS1 > (COM1, COM@) with no modem there (it tries to send AT commands), > then continues with port scan of ttyS2-ttyS7 without even attempting > to send AT commands, i.e. I guess it did not find active serial ports there > at all. > > Does anyone know what I can do? > > Tomasz. As a metter of fact, there are up to four physical communications ports on a normal PC. The reason to have devices like COM5 under windows is that it represents a non-default port configuration by assigning it a new number. In Linux you have the "/dev/ttyS[0-3]" devices which represent your physical ports. You can change their configuration (IRQ+I/O base) via setserial. See the manual page. Success, Pavel
