Ricardo Denis wrote:
>
> hi all,
>
> what is the difference between a /dev/cua* device and a /dev/ttys* device? i
> know the /dev/cua* are the serial ports (com1, com2) etc and from what i've
> read they are supposed to be related somehow to the /dev/ttys* devices but i
> am not clear on the differences. i ask because for an external modem that i
> have connected on /dev/cua1, if i refer to it as /dev/cua1 i can comunicate
> with it with a terminal program but, if i refer to it as /dev/ttys1 then the
> terminal program cannot acces the modem. also, where can i find more info on
> all the different devices in the /dev directory? thanks for any help.
I believe that the cua* device nomenclature is a historical artifact and
that the latest versions of linux are going to ttys* for the
serial devices. But they are both serial devices. Also I seem
to remember the cua devices divided input from output, i.e. you wrote
to one device and read from another. Whereas the ttys devices are
read/write combined.
I'm open to correction on this one.
Jonathan
