---
name: "kfifo_len"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/kfifo_len"
---

# kfifo\_len(9)

returns the number of used elements in the fifo

## NAME

kfifo\_len - returns the number of used elements in the fifo

## SYNOPSIS

**kfifo\_len(***fifo***);**

## ARGUMENTS

*fifo*

address of the fifo to be used

## COPYRIGHT