Hi,

I'm trying to use net2kiss to do some ax.25 plumbing. I can't seem to figure out how it wants to name ptys, and don't really understand what White Russian does with the master/slave pairs.

When I look in /dev/pty, I see a zillion files. When I look in /dev/pts, I only see a few, and they're named differently.

I've read about /dev/ptmx. As best I can tell, the net2kiss that is compiled for the WRT doesn't understand this convention/mechanism. Is there some utility I can use to create the ptys I need and pass them around to the programs that need them?

Thanks.

Or ... is there some way to get OpenWRT to use old-style ptys? Does WhiteRussian have "legacy pty" support turned on? Is there a MAKEDEV that will create them?

(Last edited by cak on 18 Jul 2007, 22:53)

Well, it turns out that the ax.25 kernel I was using had legacy pty support turned on, but no devices made.

For posterity:

Google knows everything, if you look hard enough.

I finally found

http://www.lanana.org/docs/device-list/devices.txt

which told me how the legacy pty devices are numbered and named.
With that in hand, I can

# makedevs /dev/ptyp c 2 0 0 8
# makedevs /dev/ttyp c 3 0 0 8
# cat < /dev/ptyp0 &
# echo hi > /dev/ttyp0
hi
# cat: Read error: Input/output error

So that all works. On to the next problems!