In a message dated 2/3/99 9:55:07 AM Central Standard Time, [EMAIL PROTECTED] writes:
> > However I am stuck now on implementing interrupts - specifically int 0x10. > > Are you poking fun? Do you really think it should be allowed for any user to > program interrupts? > > The whole purpose of the Linux kernel is to protect the hardware from the > user processes. > > I for one say, yes, any program should be able to mess with interrupts. I had a real-world example a few months ago. My company wanted me to modify it's test facility - a program designed to simulate credit card transactions via serial communications. It used interrupt driven comm routines to talk to the server over standard phone lines. I was constantly messing with the interrupts. (FYI - this was a DOS based program.) I understand the need to shield interrupts from the user in most cases, but Linux shouldn't prevent their use either. And why would this require root to run the software? -Jay
