Need additional /dev/ttyS

[FlaHAM]

I have a need for at least six ttyS devices. I can create additional devices with mknod, but they don't work and they disappear upon reboot. Some of the documentation I've read says to change the number of devices in the compile configuration and recompile.

I've recompiled Feisty Fawn's 2.6.20 kernel to 2.6.21-5, but am unable to find the entry I need to increase the number of /dev/ttyS devices.

Can some one direct me to the section I need or Docs that would help?

TNX
FLAHam

[askrieger]

Re: Need additional /dev/ttyS

I have no idea how to do what you're trying to do, but I'm wondering if you can do it in userspace without hacking the kernel at all by using the udev system somehow.

[FlaHAM]

Re: Need additional /dev/ttyS

A mate on another form came up with the answer.
I had looked there two or three times, but must have missed it

In menuconfig.. under:
Device Drivers
Character Devices
Serial Drivers
( 6) Number of ports at runtime
Four is the maximum.. so change the line above this one also.

The recompile should give me six ttySx devices.

I did look at user space and udev. It don't help with legacy serial ports, but did give me a hint on another problem.

TNX