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Re: cu connects to PnP modem ok, but no response for AT

Charles Read wrote:

> Earlier, I reported that:
> # cu --speed 115200 ---line /dev/ttyS1
> cu:  open (/dev/ttyS1): Permission denied
> cu:  /dev/ttyS1:  Line in use
> To fix this, I did:
> # vigr
> [added my user name to the 'dialout' group]
> # newgrp dialout
> Then:
> # cu --speed 115200 --line /dev/ttyS1
> Connected
> [here I type "at&f", which is not echoed]
> cu: write:  I/O error
> Disconnected
> #
> I've tried using the minicom setup, but the dialout
> there doesn't work either.  Ditto for dip.
> Why doesn't my modem, once connected, accept
> commands from keyboard input?
> Regards,
> Charles

I know this may seem silly (especially since someone else commented that
the cua devices are no longer used they are only there for compatibility
reasons) buuuuuuut...

Give a try using /dev/cua1 instead of /dev/ttyS1 and see what happens.  I
use /dev/cua1 at work on a dial-out box and have never had a problem with

(I was almost certain that ttySx's were dial-in while cuax's were
dial-out... hmmm.. weird. Of course, as it goes, either device you would
think should perform the same task)

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