Messages in this thread | | | From | Arnd Bergmann <> | Date | Thu, 24 Sep 2020 09:41:28 +0200 | Subject | Re: [RFC PATCH 8/9] surface_aggregator: Add DebugFS interface |
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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.
Arnd
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