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SubjectRe: [RFC PATCH 8/9] surface_aggregator: Add DebugFS interface
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On 9/24/20 9:41 AM, Arnd Bergmann wrote:
> On Thu, Sep 24, 2020 at 12:23 AM Maximilian Luz <luzmaximilian@gmail.com> wrote:
>> On 9/23/20 8:51 PM, Arnd Bergmann wrote:
>>> On Wed, Sep 23, 2020 at 8:29 PM Maximilian Luz <luzmaximilian@gmail.com> wrote:
>>>> On 9/23/20 6:48 PM, Arnd Bergmann wrote:
>>>
>>> The version I showed avoids the pointers and is compatible with
>>> 32-bit user space.
>>
>> I'm not completely convinced yet that the read/write approach is the way
>> I want to do it, especially with Greg suggesting a misc device, but I'll
>> keep your solution in mind.
>
> In case of a character device, I'd go with an ioctl to keep it extensible.
>
> The read/write based interface is what I'd use in debugfs.

Perfect, thanks!

I'll follow Greg's suggestion and create a misc device, and then go for
the IOCTL interface as you suggest.

Thanks again,
Max

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