Timur Tabi wrote:
Raja.Hayek@xxxxxxxxxxxxxx wrote:
I know that similar code works in module form, whereby I insmod the module, and set up my ports using in the init_module() function. Here, however, I am trying to build it into a regular executable. But is that the reason?
Yes. This is basic x86 stuff, not related to Linux at all. You can't execute I/O instructions in user space.
Yes, you can execute I/O instructions in user space through the outb/inb functions and by including the header sys/io.h
man ioperm
man iopl
Bill
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