Making a loop device

Making a loop device

[Peter]

Hi

Setting up a new system here but it has 1 com port on it.
Normaal I use 2 comports to make a loopback

There must be a way to make a pseudo device and make a loop with them
But I can remember (and with google) how to setup

Running kernel 2.6 here

Peter
PC2A

Re: Making a loop device

[Rodolfo Brasnarof]

On Fri, 10 Dec 2004 13:54:34 +0100
Peter wrote:

> Hi
> 
> Setting up a new system here but it has 1 com port on it.
> Normaal I use 2 comports to make a loopback
> 
> There must be a way to make a pseudo device and make a loop with them
> But I can remember (and with google) how to setup

You can use a pair of linked pseudo ttys, such as /dev/ptyp0 (master)
and/dev/ttyp0 (slave). You must always open master side firt.

Here is an example of how to use pseudottys to link jnos to the linux
kernel via slip.

http://www.tldp.org/HOWTO/AX25-HOWTO/x2141.html#AEN2300