Re: Mapping virtual addresses to physical

[AKS <aung.aungkyawsoe@xxxxxxxxx>]

user space drivers using mmap system call can be what you need.
please check Rubini's Linux Device Drivers.

On Wed, Jul 2, 2008 at 11:42 PM, Russell King - ARM Linux
<linux@xxxxxxxxxxxxxxxx> wrote:
> On Wed, Jul 02, 2008 at 09:42:26PM +0100, Alan Casey wrote:
>>   I have used code similar to the devmem2.c example at
>>   www.simtec.co.uk/appnotes/AN0014/ to map physical
>>   addresses to virtual addresses (i.e. user space pointers)
>>   but am just wondering how do you do the reverse - i.e.
>>   map virtual addresses to physical addresses in a user
>>   space program without writing a device driver??
>
> What kind of interface to this functionality are you expecting?  What
> use case would such an interface have?
>
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