Customizing UIO mmap'ing

Henry Gomersall henry.gomersall at smartacoustics.co.uk
Fri Dec 18 09:20:36 EST 2015


On 18/12/15 14:15, Kenneth Adam Miller wrote:
>
> On Fri, Dec 18, 2015 at 7:05 AM, Henry Gomersall
> <henry.gomersall at smartacoustics.co.uk
> <mailto:henry.gomersall at smartacoustics.co.uk>> wrote:
>
>     On 17/12/15 21:35, Kenneth Adam Miller wrote:
>>     Generally uio_dmem_genirq.c builds on top of uio.c, which
>>     provides a common module basis for isolating code common to the
>>     other specific modules. But for a specific purpose,
>>     uio_dmem_genirq.c has be either customized or extended in order
>>     that specific memory regions can be set as accessible. Most
>>     easily, this is done in a first come first serve approach by
>>     filling out the details (which exactly?) left missing in
>>     uio_dmem_genirq.c, and to start, that would be
>>     in uio_of_genirq_match
>>     <https://proxy-us.hide.me/go.php?u=zWvu%2Fc4k0RUgdQesK%2F26T4EuwcXktyOuOa%2F3x1F0nLo5r0d9WlQEzfN928BYniutwGWnnJXkaBWcsA6D&b=29>.
>>
>>     Am I correct?
>
>     It's not always necessary to modify uio_dmem_genirq.
>
>
> Is it correct though, that I can use another module to stack on top of
> uio_dmem_genirq, and that the correct thing to modify is in fact the
> variable I mentioned? 

I don't know the answer to this. I'm pretty new to it myself :)

Henry
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20151218/22be26b1/attachment.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 819 bytes
Desc: OpenPGP digital signature
Url : http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20151218/22be26b1/attachment.bin 


More information about the Kernelnewbies mailing list