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drivers pps: add PPS generators support

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Sometimes one needs to be able not only to catch PPS signals but to
produce them also. For example, running a distributed simulation,
which requires computers' clock to be synchronized very tightly.

This patch adds PPS generators class in order to have a well-defined
interface for these devices.

Signed-off-by: Rodolfo Giometti <giometti@enneenne.com>
Link: https://lore.kernel.org/r/20241108073115.759039-2-giometti@enneenne.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rodolfo Giometti
2024-11-08 08:31:12 +01:00
committed by Greg Kroah-Hartman
parent c79a39dc8d
commit 86b525bed2
9 changed files with 553 additions and 2 deletions
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1
Documentation/userspace-api/ioctl/ioctl-number.rst
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@@ -283,6 +283,7 @@ Code Seq# Include File Comments
'p' 80-9F linux/ppdev.h user-space parport
<mailto:tim@cyberelk.net>
'p' A1-A5 linux/pps.h LinuxPPS
'p' B1-B3 linux/pps-gen.h LinuxPPS
<mailto:giometti@linux.it>
'q' 00-1F linux/serio.h
'q' 80-FF linux/telephony.h Internet PhoneJACK, Internet LineJACK