From 55ed837d7cf11a9c506f83da79d39f9ada597740 Mon Sep 17 00:00:00 2001 From: Pandith N Date: Mon, 16 Oct 2023 15:49:53 +0530 Subject: [PATCH] Documentation: driver-api: pps: Update PPS generator documentation PPS documentation has a generalized section for generators. Update the section so any new generator documentation can be appended. Signed-off-by: Pandith N Signed-off-by: Lakshmi Sowjanya D Reviewed-by: Andy Shevchenko Acked-by: Rodolfo Giometti Signed-off-by: Jonathan Corbet Link: https://lore.kernel.org/r/20231016101953.27308-1-lakshmi.sowjanya.d@intel.com --- Documentation/driver-api/pps.rst | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/Documentation/driver-api/pps.rst b/Documentation/driver-api/pps.rst index 2d6b99766ee8..78dded03e5d8 100644 --- a/Documentation/driver-api/pps.rst +++ b/Documentation/driver-api/pps.rst @@ -200,11 +200,17 @@ Generators 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. One way to do this is to -invent some complicated hardware solutions but it may be neither necessary -nor affordable. The cheap way is to load a PPS generator on one of the -computers (master) and PPS clients on others (slaves), and use very simple -cables to deliver signals using parallel ports, for example. +computers' clock to be synchronized very tightly. + + +Parallel port generator +------------------------ + +One way to do this is to invent some complicated hardware solutions but it +may be neither necessary nor affordable. The cheap way is to load a PPS +generator on one of the computers (master) and PPS clients on others +(slaves), and use very simple cables to deliver signals using parallel +ports, for example. Parallel port cable pinout::