From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
On Mon, 10 Jun 2024 01:37:28 +0800, Huichun Feng wrote:
> In legacy sysfs GPIO, when using poll(2) on the sysfs GPIO value for
> state change awaiting, a subsequent read(2) is required for consuming
> the event, which the doc recommends the use of lseek(2) or
> close-and-reopen to reset the file offset afterwards.
>
> The recommendations however, require at least 2 syscalls to consume
> the event. Gladly, use of pread(2) require only 1 syscall for the
> consumption. Let's advertise this usage by prioritizing its placement.
>
> [...]
Applied, thanks!
[1/1] docs: gpio: prefer pread(2) for interrupt reading
commit: 7f1e45f4ae7671550e15354ef87194bccd99ecec
Best regards,
--
Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
