Messages in this thread | | | Date | Wed, 16 Apr 2008 06:52:17 -0700 | From | Arjan van de Ven <> | Subject | Re: [newb] mmap pci |
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On Wed, 16 Apr 2008 07:23:29 -0400 Neal Becker <ndbecker2@gmail.com> wrote:
> We have a device - an FPGA board on PCI bus. It has a range of > internal memory mapped to PCI. I want to expose this to user via > mmap. Is there some example code someone could point me to? > > If this is not the best forum for such questions, what would be a > better choice?
Hi,
if it's just a PCI bar, you can already memory map it without even writing a driver! You can just use the sysfs files for this, for example /sys/devices/pci0000:00/0000:00:02.0/resource1
There's also a way to do this via the /proc representation of the PCI device..
Greetings, Arjan van de Ven
-- If you want to reach me at my work email, use arjan@linux.intel.com For development, discussion and tips for power savings, visit http://www.lesswatts.org
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