COMEDI_RESET(3)

💅 COMEDI_RESET 💅

okay bestie, gather round, because we're talking about comedi_reset(3) — yes, that's section 3 of the Comedi reference manual, and yes, it's giving "tiny function, big responsibilities" energy. Let's get into it. ✨

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✨ NAME ✨

comedi_reset — reset a subdevice 🫶

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✨ SYNOPSIS ✨

#include <comedilib.h>

int comedi_reset(comedi_t * device, unsigned int subdevice);

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✨ STATUS ✨

alpha 🌸 — she's still in her experimental era, no cap.

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✨ DESCRIPTION ✨

So basically, this function resets a subdevice. That's it, that's the whole gig.

BUT. 🚨 And this is the important part, bestie — it's only useable on subdevices that provide support for the INSN_CONFIG_RESET configuration instruction. If your subdevice isn't about that life, this function is not for you, fr fr.

Also, plot twist: some subdevices treat this as an instruction to reset a specific channel. For those subdevices, this function will reset channel 0. So if you want to pick which channel gets reset, you need to call comedi_reset_channel instead of this one. iykyk. 💅

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✨ RETURN VALUE ✨

• 0 — success, she ate 🔥
• -1 — error 😭

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✨ AUTHORS ✨

The icons who made this happen, in the order the page lists them:

• 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 ✨

The receipts, verbatim: 💖

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.

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bestie reminder: the "pointer to subdevice" in the signature is a comedi_t * device and an unsigned int subdevice, so don't get it twisted. 🫶

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okay that's the whole page, mwah 💋 This iconic lil doc came from the Comedi project, and the version we're looking at is dated 03/20/2026. Go forth and reset responsibly, queen. 👑💅✨