Hello,
On Fri, 24 Sep 2004 10:25:47 +0100, Peter Risdon <[EMAIL PROTECTED]> wrote:
Carlos A. Carnero Delgado wrote:
I have a little program , linux native, that I've managed to run thanks to the Linux compat layer. However, this program opens the serial port ttyS1, which doesn't exist as such in 5.2.1.
The question is this: how do I make this program to open the serial port? (FYI, the device it should open is a random number generator.)
This is a complete guess, but I'm curious whether it would work:
You can make links in the /dev directory to existing devices by using entries in /etc/devfs.conf, so in this case you could add a line like:
link cuaa1 ttyS1
This works fine with FreeBSD native applications, so I use links like this for my old serial port palm base, and for a cdrom link. Whether it would work with Linux compatibility stuff, I don't know. But, as I said, I'd be interested to find out.
Perfect, that worked out OK. However, I'm getting this every second in the system log:
kernel: sio1: 960 more tty-level buffer overflows (total 126252)
Have any idea about this?
You might get more informed responses from others. I remember seeing these errors frequently on oldish machines using serial port terminal adapters and modems, but haven't used one of those for ages and don't remember the fix (there was one). Googling for the error gives:
http://docs.freebsd.org/cgi/getmsg.cgi?fetch=1745220+0+archive/1998/freebsd-questions/19981018.freebsd-questions
Which suggests that *data is coming in faster than your program can interpret it. There isn't much you can do about this other than try quitting some programs.*
I can add that this was never fatal, just filled up the first console screen and /var/log/messages.
Peter.
--
the circle squared
network systems and software
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