direct access to register

Hello, How can i have a direct access to a register (isa or pci) in user mode without developp a module. for io bus isa i think it is "ioperm" ( but for PCI i know the real hard register address )

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The PCI registers are so high in address space that the ioperm() call cannot grant access to them, you need a kernel mode driver.

Tauno Voipio
tauno voipio (at) iki fi
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Tauno Voipio

In simple cases, one can simply mmap /dev/mem instead of writing a device specific kernel space driver (and mmap fop).


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Matt Porter

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