https://www.linuxpps.org/ 2026-11-04T18:10:04+00:00 https://www.linuxpps.org/ https://www.linuxpps.org/lib/exe/fetch.php/wiki:dokuwiki.svg text/html 2026-10-29T14:51:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.linuxpps.org/doku.php/sidebar?rev=1793285502&do=diff LinuxPPS index text/html 2026-09-02T18:53:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://www.linuxpps.org/doku.php/?image=wiki%3Adokuwiki.svg&ns=wiki&rev=1788375207&tab_details=history&media_do=diff&do=media <img src="https://www.linuxpps.org/lib/exe/fetch.php/wiki:dokuwiki.svg?w=500&amp;h=500&amp;tok=a97823" alt="dokuwiki.svg" loading="lazy" width="500" height="500" /> text/html 2025-02-24T09:02:51+00:00 giometti (giometti@undisclosed.example.com) https://www.linuxpps.org/doku.php/technical_information?rev=1740387771&do=diff Technical Information RFC considerations While implementing a PPS API as RFC 2783 defines and using an embedded CPU GPIO-Pin as physical link to the signal, I encountered a deeper problem: At startup it needs a file descriptor as argument for the function ''time_pps_create()''. text/html 2020-11-26T15:06:35+00:00 giometti (giometti@undisclosed.example.com) https://www.linuxpps.org/doku.php/start?rev=1606403195&do=diff LinuxPPS wiki Welcome to new LinuxPPS's wiki page! Overview LinuxPPS provides a programming interface (API) to define in the system several PPS sources. PPS means “pulse per second” and a PPS source is just a device which provides a high precision signal each second so that an application can use it to adjust system clock time. text/html 2018-08-30T16:24:20+00:00 giometti (giometti@undisclosed.example.com) https://www.linuxpps.org/doku.php/linuxpps_faq?rev=1535646260&do=diff LinuxPPS FAQ Q1) Running my NTPD driver I see in the log messages: [ntpd] refclock_nmea: time_pps_kcbind failed: Operation not supported Is that an implementation bug? A1) No. The function time_pps_kcbind() is defined as “optional” into RFC 2783 and, simply, LinuxPPS doesn't implement it! :) text/html 2018-08-29T14:07:12+00:00 giometti (giometti@undisclosed.example.com) https://www.linuxpps.org/doku.php/technical_informations?rev=1535551632&do=diff text/html 2018-08-27T15:23:59+00:00 giometti (giometti@undisclosed.example.com) https://www.linuxpps.org/doku.php/?image=meinberg_logo.png&ns=0&rev=1535383439&tab_details=history&media_do=diff&do=media <img src="https://www.linuxpps.org/lib/exe/fetch.php/meinberg_logo.png?w=500&amp;h=500&amp;tok=32ffd3" alt="meinberg_logo.png" loading="lazy" width="500" height="500" />