XPP_SYNC(8)

👑 XPP_SYNC — the Astribank sync queen 💅

okay bestie, welcome to XPP_SYNC(8), from the User Contributed Perl Documentation collection ✨ this little baddie is literally the vibe-check for your Xorcom Astribank synchronization, and she's about to explain everything 🫶

---

✨ NAME ✨

xpp_sync — Handle sync selection of Xorcom Astribanks. that's it, that's the job, and she does it flawlessly 💖

---

🌸 SYNOPSIS 🌸

xpp_sync <auto|dahdi|nn>

xpp_sync [-v]

---

🦋 DESCRIPTION 🦋

so in normal operation, one Astribank device provides timing for all the other Astribank devices. one main character, everyone else follows. iconic behavior honestly 👑

When you run xpp_sync with no parameters, it'll show you a list of Astribanks (the xbuses) that are connected and registered as Dahdi spans. The current xpp sync master gets marked so you know who's holding the crown 💖

Wait, one of your Astribanks is connected but NOT showing up in the xpp_sync output? 😭 She's probably unregistered bestie. Try running dahdi_registration.

---

🎀 Parameters 🎀

• auto — Automatically selects the best Astribank for syncing. let her choose, she has taste ✨
• dahdi — Gets synchronization from the Dahdi sync master. passing the crown upstream, slay 💅
• nn — Sets XBUS-nn as sync source. picking your fave by name, we love a decisive queen 🫶
• -v — Also print the numeric xpp sync rank. receipts, numbers, data. obsessed 📊

(Parameter name is case-insensitive) — so scream it, whisper it, whatever, no cap 🩷

---

🌈 Example output 🌈

Setting SYNC
Current sync: 01
Best Available Syncers:
 + XBUS-01 (usb-0000:00:10.4-3) [usb:12345678]       [ PRI_TE PRI_NT PRI_TE PRI_NT ]
   XBUS-00 (usb-0000:00:10.4-2) [usb:QA-01]          [ FXS FXO ]
 ==================================================
 WARNING: FXO which is not the syncer cause bad PCM
          Affected Astribanks are:
 --------------------------------------------------
         XBUS-00
 ==================================================

so in this example we see that the recommended xpp sync master is XBUS-02 — she's the first one on the list 🥇 and she's also the actual syncer, which we can tell from the + sitting right beside her. main character confirmed 💖

⚠️ alsoooo take note: FXO which is not the syncer cause bad PCM 😭 and the affected Astribank in this case is XBUS-00. read your warnings, bestie.

xpp_sync is normally called from the dahdi init.d script. the parameter it gets called with defaults to auto, but you can override that parameter (e.g: set it to dahdi) through the value of XPP_SYNC in /etc/dahdi/init.conf ✨ custom configuration is a whole lifestyle, live your truth 💅

---

🍓 FILES 🍓

• /sys/bus/astribanks/drivers/xppdrv/sync — xpp_sync is essentially a nicer interface to /sys/bus/astribanks/drivers/xppdrv/sync. That file shows the current xpp sync master. 🌸

Writing to it, force XPP drivers to use a different sync master 💫

---

💜 SEE ALSO 💜

dahdi_registration(1), dahdi_cfg(1), README.Astribank — go read the girlies, they're all part of the same friend group 🫶

---

k bye bestie, go sync your Astribanks, you got this 💅 this page shipped with perl v5.40.1, dated 2026-06-15 — yes that's the XPP_SYNC(8) energy, periodt ✨🎀🦋