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SubjectRe: PCI bus mastering in userland
Date
Hi,

> I am programming a driver for a evaluation board from AMCC.
> The kernel module is OK, with or without bus mastering and irq support.
> But one of my great concerns is to offer a user-mode driver, too;
> FIFO programming is quite easy, and what about bus mastering transfers in
> user-mode ?

I don't understand what advantages can have a user-mode driver. It must be
run as root in order to use the ports, so it's much simpler to use a kernel
module, isn't it?

Martin


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