SETRWLS(3)

📦
version 4.3.7 · 2 versions
, in ubuntu stonking

✨ SETRWLS ✨

okay so bestie, we're doing SetRWLS(3) today — it's from the linux-gpib fam and it's literally the glow-up button for your GPIB devices. let's get into it 💅

🎀 NAME 🎀

SetRWLS — put devices into remote with lockout state

like, the whole vibe is: you're the main character, and you're putting your devices in remote with lockout state. no cap. 🔥

🌸 SYNOPSIS 🌸

#include <gpib/ib.h>

void SetRWLS(int board_desc, const Addr4882_t addressList[]);

so you include <gpib/ib.h>, and then it's just this one lil call. two args. that's it. periodt. 💖

🦋 DESCRIPTION 🦋

okay so here's the tea, bestie ☕ — SetRWLS() does a little three-step routine and honestly it's iconic:

  1. it asserts the 'remote enable' bus line ✨
  2. it addresses the devices in the addressList array as listeners 🫶
  3. it sends the LLO command byte 💌

and the way that this works is genuinely so satisfying: every device you addressed as a listener gets put into RWLS — that's remote with lockout state — and all the other devices enter LWLS, which is local with lockout state. 🧚

now what does local lockout actually mean? it means the remote/local mode of devices cannot be changed through the devices' front-panel controls. like... no, bestie, you don't get to press the button. the button does nothing now. sorry not sorry. 💀

and the good news?? unasserting the REN line should bring the devices out of the lockout state. so it's not forever, it's just until you say so. we love a reversible queen. 👑

Copyright © 2003-2006, 2008 Frank Mori Hess

and that's the whole page, babe — this was SETRWLS(3) from linux-gpib 4.3.7, dated 07/06/2026. go forth and lock out those front panels. slay 💖✨🌈

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