eravin@panix.uucp (Ed Ravin) (05/30/91)
I had the pleasure of installing PC-Stimulator on my RS-6000 under AIX 3.1.5. Apart from a broken install process (the README file and the message catalog had the wrong checksums, indicating a few last minute changes somewhere), things worked well, until I set up serial ports for the PC environment. My Info Expurger hypertext CD (also 3.1.5) has an article titled "How to install Serial Port Support for PC-Simulator" (this is not verbatim, since I'm at home and don't have an eidetic memory). It instructs you to run the command "/etc/tty/ttyconf -l pcsim", which I'm guessing loads a line discipline into the kernel. So far, so good. I run pcsim and get my little PC window, even a VGA screen (hey IBM! neat software! congratulations!). I run MS-Kermit and even the Prodigy service in the little window, and they work with a modem attached to one of my RS-6000's tty's. Both these programs write directly to UART hardware registers, so there's clearly some interesting emulation going on here. But then, I exit pcsim, and ummmm, geee, the modem's DTR light is still on. I try to run Kermit, and Kermit can't set the baud rate or read from the tty anymore. I try "stty 0 </dev/tty9" and I get the message "missing /etc/tty/stty-pcsim". If I want the port back for normal Unix applications, I need to reboot the machine. Can anyone out there shed light on this strangeness? And who is this beast /etc/tty/ttyconf, and why, apart from the brief mention in the pcsim install instructions, goes entirely undocumented in the Info Intruder disk? -- Ed Ravin | I'm sorry, sir, but POSTAL REGULATIONS don't allow cmcl2!panix!eravin | PLASTIC tape over PAPER tape and NYLON cord on an philabs!trintex!elr | 86 inch girth to LITHUANIA... +1 914 993 4737 |