Messages in this thread |  | | From | Martin Mares <> | Subject | Re: PCI bus mastering in userland | Date | Wed, 24 Jul 1996 17:39:38 +0200 (MET DST) |
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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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