Re: Serial ports?
Has anyone tried accessing serial ports from perl? I tried accessing a USB-port. I tried installing Device::Serial and it crashes hard (text is printed on the screen as if it was a console indicating it is waiting for the remote debugger to attach). snip Somewhere around test 85 the Mac crashes badly. Even from user mode. That is strange. The kernel shouldn't really panic, unless you where running this process in kernel space. Trying to access an I/O port or hardware-mapped memory shouldn't give you a kernel panic from user space. The kernel should just reject it, and send a signal to your process. I don't know if this crash would affect different serial ports or non-SUB serial ports or whatever. Any thoughts? I think you have to use a device driver. Or you need to make your script run in kernel space, you can't access any HW from user space. http://developer.apple.com/techpubs/macosx/Darwin/IOKit/IOKitFundamentals/Ab out/index.html Tor
Re: Serial ports?
At 9:39 + 24/6/02, Tor Hildrum wrote: Somewhere around test 85 the Mac crashes badly. Even from user mode. That is strange. The kernel shouldn't really panic, unless you where running this process in kernel space. Trying to access an I/O port or hardware-mapped memory shouldn't give you a kernel panic from user space. The kernel should just reject it, and send a signal to your process. Yeah, that was my thoughts! I think you have to use a device driver. Or you need to make your script run in kernel space, you can't access any HW from user space. Yes and no. You're right, I didn't have a driver, the Belkin serial ports aren't supported under Mac OS X, so there was in fact no serial port available at all. This still begs the question how can a user process running the Perl Device::Serial test scripts completely crash the Mac. But at the end of the day, it isn't going to work anyway because I don't have any serial ports (I was confused because I can actually access the serial ports as USB devices under Virtual PC from Windows!). On another Mac with a built in serial port I am just reading/writing from /dev/cu.modem and it is working fine. Peter. -- http://www.interarchy.com/ http://download.interarchy.com/
Re: Serial ports?
On another Mac with a built in serial port I am just reading/writing from /dev/cu.modem and it is working fine. Running Mac OS X? From my understanding, that shouldn't be possible. Unless you are using some kind of ioctl call. Tor
YAPC talk
Just a reminder for anyone who will be there, I'll be giving a Mac::Perl talk at YAPC. Covered will be an overview of the state of perl on Mac OS and Mac OS X; different methods for controlling your Mac OS X environment from perl (including AppleScript, Carbon, Cocoa); MacPerl's place in Mac OS X; and an announcement about MacPerl on Mac OS X that you may not want to miss. Slides will be posted after the talk. -- Chris Nandor [EMAIL PROTECTED]http://pudge.net/ Open Source Development Network[EMAIL PROTECTED] http://osdn.com/
