linux/include/uapi
Kent Gibson 26d060e47e gpiolib: cdev: allow edge event timestamps to be configured as REALTIME
Using CLOCK_REALTIME as the source for event timestamps is crucial for
some specific applications, particularly those requiring timetamps
relative to a PTP clock, so provide an option to switch the event
timestamp source from the default CLOCK_MONOTONIC to CLOCK_REALTIME.

Note that CLOCK_REALTIME was the default source clock for GPIO until
Linux 5.7 when it was changed to CLOCK_MONOTONIC due to issues with the
shifting of the realtime clock.
Providing this option maintains the CLOCK_MONOTONIC as the default,
while also providing a path forward for those dependent on the pre-5.7
behaviour.

Suggested-by: Jack Winch <sunt.un.morcov@gmail.com>
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Link: https://lore.kernel.org/r/20201014231158.34117-2-warthog618@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-12-05 23:22:47 +01:00
..
asm-generic mm/madvise: introduce process_madvise() syscall: an external memory hinting API 2020-10-18 09:27:10 -07:00
drm
linux gpiolib: cdev: allow edge event timestamps to be configured as REALTIME 2020-12-05 23:22:47 +01:00
misc
mtd
rdma RDMA/rxe: Move the definitions for rxe_av.network_type to uAPI 2020-10-16 13:54:10 -03:00
scsi
sound ALSA: fix kernel-doc markups 2020-10-26 15:26:31 +01:00
video
xen
Kbuild