---
name: "iiod"
section: "1"
platform: "linux"
package: "libiio"
version: "0.26-5"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/iiod"
---

# iiod(1)

IIO Daemon

## NAME

iiod - IIO Daemon

## SYNOPSIS

**iiod** \[ *options* \]

## DESCRIPTION

**iiod** is a server built on top of Libiio which can share a Libiio context across the network, USB, or a UART link.

## COMMANDS

- **-V, --version**

  Display the version of this program.

- **-d, --debug**

  Use alternative (incompatible) debug interface.

- **-D, --demux**

  Demux channels directly on the server.

- **-i, --interactive**

  Run iiod in the controlling terminal.

- **-a, --aio**

  Use asynchronous I/O.

- **-F, --ffs \<arg\>**

  Use the given FunctionFS mountpoint to serve over USB.

- **-n, --nb-pipes \<arg\>**

  Specify the number of USB pipes (ep couples) to use.

- **-s, --serial \<arg\>**

  Run iiod on the specified UART.

- **-p, --port \<arg\>**

  Port to listen on (default = 30431). Using --port 0 will pick an ephemeral port (dynamic / unused in the range between 32768–60999).

- **-u, --uri**

  The Uniform Resource Identifier *(uri)* for connecting to devices, can be one of:

  - ip:\[address\]

    network address, either numeric (192.168.0.1) or network hostname

  - ip:

    blank, if compiled with zeroconf support, will find an IIO device on network

  - usb:\[device:port:instance\]

    normally returned from **iio\_info -S**

  - serial:\[port\],\[baud\],\[settings\]

    which are controlled, and need to match the iiod (or tinyiiod) on the other end of the serial port.

    - \[port\]

      is something like '/dev/ttyUSB0' on Linux, and 'COM4' on Windows.

    - \[baud\]

      is is normally one of 110, 300, 600, 1200, 2400, 4800, 9600, 14400, 19200, 38400, 57600, 115200 \[default\], 128000 or 256000, but can vary system to system.

    - \[settings\]

      would normally be configured as '8n1' this is controlled by:

      - data\_bits:

        (5, 6, 7, 8 \[default\], or 9)

      - parity\_bits:

        ('n' none \[default\], 'o' odd, 'e' even, 'm' mark, or 's' space)

      - stop\_bits:

        (1 \[default, or 2)

      - flow\_control:

        ('0' none \[default\], 'x' Xon Xoff, 'r' RTSCTS, or 'd' DTRDSR)

  - local:

    with no address part. This is the default.

- If the specified device is not found, a non-zero exit code is returned.

  ## RETURN VALUE