How can I remove my existing parallel port driver?
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How can I remove my existing parallel port driver?
Dear friends!
I executed a character driver for parallel port and my base address is 0x378.When i insert my .ko file into kernel space, it says, the address is already using by the drivers like parport, parport_pc. I tried to removed that driver by the command "rmmod".
But it says "the resource is busy; unable to remove". But i did not used any parallel port. Please tell me, how can i remove my existing driver? And how can test my own driver?
Waiting for your valuable reply.
Thank you.
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