---
name: "class_id_show"
section: "9"
platform: "linux"
package: "linux-manual-3.16"
version: "3.16.56-1+deb8u1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/class_id_show"
---

# class\_id\_show(9)

Displays class id of I2O device

## NAME

class\_id\_show - Displays class id of I2O device

## SYNOPSIS

**ssize\_t class\_id\_show(struct device \*** *dev***, struct device\_attribute \*** *attr***, char \*** *buf***);**

## ARGUMENTS

*dev*

device of which the class id should be displayed

*attr*

pointer to device attribute

*buf*

buffer into which the class id should be printed

## DESCRIPTION

Returns the number of bytes which are printed into the buffer.

## COPYRIGHT