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Parallel port

Hi all,

How i do read a byte from parallel port?
I have a problem i don't read a byte :

1. outb(x,0x378)
2. my device return a byte and i want read
3. c = inb(0x378); 

c=x and not byte returned from device why?


Thanks 
R!SC

P.S. It's not problem with device 

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