COMEDI_GET_CMD_SRC_M(3)

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

💖 COMEDI_GET_CMD_SRC_M 💖

okay bestie, welcome to the comedi_get_cmd_src_mask page — it's part of the Comedi reference (section 3 of the manual, iykyk) and honestly? it's giving "little function, big main character energy". let's get into it 🦋

✨ NAME ✨

comedi_get_cmd_src_mask — streaming input/output capabilities 🌈

✨ SYNOPSIS ✨

#include <comedilib.h>

int comedi_get_cmd_src_mask(comedi_t * device, unsigned int subdevice,
                            comedi_cmd * command);

✨ DESCRIPTION ✨

so basically, this function does a lil vibe check on your subdevice 🔍 — the one you point at with the parameters device and subdevice — and it probes that subdevice's command capabilities, then drops the results into the command structure you're pointing at with command.

and here's the slay part: the trigger source elements of that command structure get set to the bitwise-or of every trigger source the subdevice supports. like, all of them, smooshed together with bitwise-or 💅

but bestie, listen — the other elements in the structure are undefined. undefined!! not zero, not "probably fine", just straight-up undefined. do not go reading them and thinking you know something. 🙈

✨ RETURN VALUE ✨

  • on success, 0 comes back 🫶
  • on failure, -1 comes back 😭

that's it. that's the whole return value situation. periodt.

✨ AUTHORS ✨

the icons who built this 👑💖

  • 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.

the whole legal moment, verbatim, because we respect the paperwork 💜

  • 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.

⚠️ ok important: that "WITHOUT ANY WARRANTY" bit is not a joke, bestie. no warranty of any kind, fr fr. read it, respect it, don't come for anyone's neck later. 😤

and that's the page!! 🌸 this was the Comedi reference, dated 03/20/2026, and you just read the COMEDI_GET_CMD_SRC_M(3) manual. go forth and probe those subdevice capabilities, you absolute queen 🧚✨💖

📦 where this page comes from