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

# device\_is\_quiet(9)

manipulate device quiet flag

## NAME

**device\_quiet**, **device\_verbose**, **device\_is\_quiet** – manipulate device quiet flag

## SYNOPSIS

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

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

*void*\

**device\_quiet**(*device\_t dev*);

*void*\

**device\_verbose**(*device\_t dev*);

*int*\

**device\_is\_quiet**(*device\_t dev*);

## DESCRIPTION

Each device has a quiet flag associated with it. A device is verbose by default when it is created but may be quieted to prevent printing of the device identification string during attach and printing of a message during detach. To quiet a device, call **device\_quiet**() during a device driver probe routine. To re-enable probe messages, call **device\_verbose**(). To test to see if a device is quieted, call **device\_is\_quiet**().

Devices are implicitly marked verbose after a driver detaches.

## SEE ALSO

[device(9)](/device/9.md)

## AUTHORS

This manual page was written by Doug Rabson.