- Code:
void main(void)
{
int alm;
iopl(3);
if (ioperm(0x98, 3, 1)) //Set the permission to the port.
{
perror("ioperm");
exit(1);
}
}
If i run this program with sudo when i turn on the roboard, i will be able to use the ports from user speace without specifying the sudo command! It works (i tested)
But my question is, what´s up if i let all GPIO with write permission always? can i make a damage?
From here im enabled to R/W port with simple instruction:
- Code:
outportb(0x98, 0xff);
Statistics: Posted by jlmunix — Thu Apr 15, 2010 11:08 pm
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