---
name: "devctl_process_running"
section: "9"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["freebsd"]
url: "https://new.carta.tech/devctl_process_running"
---

# devctl\_process\_running(9)

Returns true when devctl has a consumer process running

## NAME

**devctl\_process\_running** – Returns true when devctl has a consumer process running

## SYNOPSIS

**#include \<sys/devctl.h\>**

*bool*\

**devctl\_process\_running**(*void*);

## DESCRIPTION

The **devctl\_process\_running** call returns *true* when a process has the devctl device open for reading, and *false* otherwise. One can assume from this that the default [devd(8)](/devd/8.md) or similar is running when *true* is returned. Some subsystems will send a message and allow userland to do something before proceeding with a default action if there's a timeout. This call allows those subsystems to do the default action right away when no process is running.

## SEE ALSO

[devd(8)](/devd/8.md)

## AUTHORS

This manual page was written by M. Warner Losh