IBTMO(3)

📦
version 4.3.7 · 2 versions
, in ubuntu stonking

💅 IBTMO(3) — bestie's guide to ibtmo

okay so hi, welcome to the manual page for ibtmo, aka the function that tells your GPIB board or device how long to wait before it gives up. adjusting io timeout, board or device, that's the whole gig. let's get into it 🦋

🌸 SYNOPSIS

#include <gpib/ib.h>

int ibtmo(int ud, int timeout);

literally two arguments, bestie. you got this. 💖

✨ DESCRIPTION

okay so here's the tea ☕: ibtmo() sets the timeout for IO operations and ibwait calls performed using the board or device descriptor ud.

important vibe check: the actual amount of time before a timeout occurs may be greater than the period specified, but never less. so it's not a "will time out at exactly this moment" situation, it's a "will not time out before this" situation. lowkey generous, highkey reliable. 🫶

you pick your timeout using one of these constants:

Table 11. Timeout constants 👑

  • TNONE — value 0 — Never timeout. (the "we die like real ones, waiting forever" option 💀)
  • T10us — value 1 — 10 microseconds
  • T30us — value 2 — 30 microseconds
  • T100us — value 3 — 100 microseconds
  • T300us — value 4 — 300 microseconds
  • T1ms — value 5 — 1 millisecond
  • T3ms — value 6 — 3 milliseconds
  • T10ms — value 7 — 10 milliseconds
  • T30ms — value 8 — 30 milliseconds
  • T100ms — value 9 — 100 milliseconds
  • T300ms — value 10 — 300 milliseconds
  • T1s — value 11 — 1 second
  • T3s — value 12 — 3 seconds
  • T10s — value 13 — 10 seconds
  • T30s — value 14 — 30 seconds
  • T100s — value 15 — 100 seconds
  • T300s — value 16 — 300 seconds
  • T1000s — value 17 — 1000 seconds (that's 16 minutes and 40 seconds of pure patience, ateeee 🧚)

🎀 RETURN VALUE

The value of ibsta is returned. that's it, that's the return value. no mystery. ✨

ok but fr fr, if you're picking TNONE just know your program will simply. wait. forever. not me romanticizing an infinite hang 💀

🌈 a lil sign-off

this page is part of linux-gpib, version 4.3.7, and it was last dated 07/06/2026. the copyright belongs to Copyright © 2003-2006, 2008 Frank Mori Hess — respect the elders, they built the thing 👑💖

k bye, go set your timeouts responsibly 🦋💅

📦 where this page comes from