Re: mmap() of PCI space in device driver

Jeff Garzik (jgarzik@pobox.com)
Fri, 18 Jun 1999 13:39:44 -0400 (EDT)

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On Fri, 18 Jun 1999, Scott C. Karlin wrote:
> The PCI device I have decodes a single 16MB memory space. I need
> to be able to map this space into the user space so that users can
> access it through pointers. The old driver supports both Intel
> and Alpha architectures; the new driver must support both as well.

The framebuffer subsystem (drivers/video/*) does this -- on-card
framebuffer memory is presented to userland as one big mmap'able memory
region.

Jeff

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