COMEDI_FIND_RANGE(3)

💖 COMEDI_FIND_RANGE 💖

okay so bestie, we're in the comedi reference manual, and today's main character is comedi_find_range(3) — the girl who finds you the smallest range that can hold your numbers. she's lowkey a genius and she never misses. let's get into it 🫶

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✨ NAME ✨

comedi_find_range — search for range 🔍

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🌸 SYNOPSIS 🌸

#include <comedilib.h>

int comedi_find_range(comedi_t * device, unsigned int subdevice,
                      unsigned int channel, unsigned int unit,
                      double min, double max);

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🦋 DESCRIPTION 🦋

so what does she actually do? comedi_find_range tries to locate the optimal (smallest) range for the channel channel that belongs to subdevice subdevice of the comedi device device — and that range has to include both min and max, in units of unit.

basically: you hand her two numbers, she goes shopping for the tiniest possible range that can still carry both of them. no wasted range, no overshoot. it's giving ✨efficiency✨, it's giving main character energy, periodt.

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👑 RETURN VALUE 👑

• if a matching range is found, you get the index of the matching range back. slay 💅
• if no matching range is available, the function returns -1. and that's your sign, bestie. 😭

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💜 AUTHORS 💜

these are the icons who built her, no cap:

• 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.

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🎀 COPYRIGHT 🎀

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.

fr fr, read the license, it's the rules 💖

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aaaand that's the whole page! 💕 this was COMEDI_FIND_RANGE(3) from the Comedi manual, dated 03/20/2026. go find your ranges, bestie — you got this 🦋✨💅