COMEDI_SET_GATE_SOUR(3)

📦
version 0.11.0+5 · 7 versions
, in ubuntu resolute, ubuntu stonking

✨ COMEDI_SET_GATE_SOUR ✨

okay bestie, so this is a page from the Comedi reference manual — it's the comedi_set_gate_source one, section 3 of the manual. yes it's giving very "electronics nerd" but honestly? iconic. let's get into it 💅

🌸 NAME 🌸

comedi_set_gate_source — pick which gate source a subdevice should use, periodt.

🦋 SYNOPSIS 🦋

#include <comedilib.h>

int comedi_set_gate_source(comedi_t * device, unsigned int subdevice,
                           unsigned int channel,
                           unsigned int gate_index,
                           unsigned int gate_source);

⭐ STATUS ⭐

alpha — yeah she's still in her alpha era, lowkey still cooking 🍓

💖 DESCRIPTION 💖

So this function selects a gate source for a subdevice. That's the whole vibe.

The gate_index parameter tells it which gate you're configuring, in case the subdevice has more than one gate (some of them do, main character energy fr). For a subdevice with N different gates, it takes a value from 0 to N-1.

Then gate_source picks which signal you actually wanna use as the gate — and heads up, this one is also driver-dependent, so it's not the same everywhere, iykyk.

If the subdevice doesn't support configuring its gates on a per-channel basis, then the channel parameter just gets ignored. like, straight up not read. no cap 🙈

You can always query the gate source back with the comedi_get_gate_source function, if you're nosy like that (valid).

⚠️ real talk: this function only works on subdevices that provide support for the INSN_CONFIG_SET_GATE_SRC configuration instruction. if your subdevice isn't about that life, it's not happening bestie.

🔥 RETURN VALUE 🔥

  • 0 on success 🎉
  • -1 on error 😭

👑 AUTHORS 👑

  • David Schleef <ds@schleef.org> — Author.
  • Frank Mori Hess <fmhess@users.sourceforge.net> — Author.
  • Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be> — Author.
  • Bernd Porr <tech@linux-usb-daq.co.uk> — Author.
  • Ian Abbott <abbotti@mev.co.uk> — Author.
  • Éric Piel <piel@delmic.com> — Author.

look at that roster. legends only. 💜

Copyright © 1998-2003 David Schleef

Copyright © 2001-2003, 2005, 2008 Frank Mori Hess

Copyright © 2002-2003 Herman Bruyninckx

Copyright © 2012 Bernd Porr

Copyright © 2012 Ian Abbott

Copyright © 2012, 2015 Éric Piel

This document is part of Comedilib. In the context of this document, the term "source code" as defined by the license is interpreted as the XML source.

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, version 2.1 of the License.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

and that's the whole page bestie, slay 🫶

okay so this lil doc came out of the Comedi manual and the date stamped on it is 03/20/2026 — so if you're reading this way later, hi, hope the gates are gating 💖✨ 🎀

📦 where this page comes from