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cannot talk with AT modem


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?


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