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