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mdem device files

 
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j773303
Super Advisor

mdem device files

While I configure a modem device, there are three files /dev/cua0p4 /dev/cul0p4 /dev/ttyd0p4
, what's the different /dev/cua0p4 and /dev/cul0p4?
Which file is using in callout?
Hero
2 REPLIES 2
Stefan Farrelly
Honored Contributor
Solution

Re: mdem device files

See man mksf - its explained there. cua0p4 means Modem Dialer, access mode 0 which is direct connect. cul0p4 means access mode 1, which is dialout, so cul0p4 is what you use for dialout.
Im from Palmerston North, New Zealand, but somehow ended up in London...
Steve Steel
Honored Contributor

Re: mdem device files

Hi

Last time I looked it was like this

The cuaxx device file is really made as an entry for the ACU dialer port for use by uucp, thus it is in fact a hardwired port.

The cul is an outbound port special file while the tty is an inbound port special file.


Steve steel
If you want truly to understand something, try to change it. (Kurt Lewin)