Re: [PATCH v5 00/20] gpio: cdev: add uAPI v2

[Linus Walleij]

On Fri, Aug 28, 2020 at 12:47 AM Kent Gibson <warthog618@xxxxxxxxx> wrote:

> The particular use case I am considering is one I had been asked about -
> changing a requested line from input with edge detection to output, and
> vice versa. Losing interrupts isn't really an issue for this use case -
> it is expected.  Yet the current implementation requires a re-request.

This is possible to do for in-kernel users, but I don't know if that makes
sense for userspace. It is for one-offs and prototyping after all, there
is no need (IMO) to make it overly convenient for users to implement
all kind of weirdness in userspace unless there is a very real use case.

Yours,
Linus Walleij