---
name: "urio"
section: "4freebsd"
platform: "linux"
package: "freebsd-manpages"
version: "12.2-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/urio/4freebsd"
---

# urio(4freebsd)

USB driver for the Rio MP3 players

## NAME

**urio** – USB driver for the Rio MP3 players

## SYNOPSIS

To compile this driver into the kernel, place the following line in your kernel configuration file:

**device urio**

Alternatively, to load the driver as a module at boot time, place the following line in [loader.conf(5)](/loader.conf/5.md):

```
urio_load="YES"
```

## DESCRIPTION

The **urio** driver provides support for Rio MP3 players from Diamond MultiMedia which attaches to the USB port. The **urio** device must be configured in the kernel, along with *usb* and one of the *uhci* or *ohci* controllers.

Subsequently, the */dev/urio0* device can be used by the Rio userland applications.

## HARDWARE

The following devices are supported by the **urio** driver:

- Diamond MultiMedia Rio 500

- Diamond MultiMedia Rio 600

- Diamond MultiMedia Rio 800

## FILES

- */dev/urio0*

  blocking device node

## EXAMPLES

The following line in the kernel configuration file adds the **urio** driver to the kernel:

```
device urio
```

To download a song over the USB connection into the Rio using the [rio\_add\_song(1)](/rio_add_song/1.md) utility (see the SEE ALSO section):

```
rio_add_song /usr/local/MP3/TracyChapman/02-Fast-Car.mp3
```

## SEE ALSO

[ohci(4)](/ohci/4.md), [uhci(4)](/uhci/4.md), [usb(4)](/usb/4.md) *The Rio 500 SourceForge Project Web Page*, http://rio500.sourceforge.net/.

The Rio500 tools from SourceForge are the actual userland tools used to download, format or rename songs on players. When compiling these tools, the following pre-build configuration command will ensure that *rio\_usb.h* is available in the include path and that the device used is */dev/urio0*:

```
CFLAGS="-I/usr/include/dev/usb" ./configure \
    --with-devicepath='/dev' --with-deviceentry='urio0'
```

## AUTHORS

The **urio** driver was written by Iwasa Kazmi ⟨*kzmi@ca2.so-net.ne.jp*⟩ for FreeBSD.

This manual page was written by Dirk-Willem van Gulik ⟨*dirkx@webweaving.org*⟩.