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

# uvisor(4freebsd)

USB support for the PalmOS based PDAs

## NAME

**uvisor** – USB support for the PalmOS based PDAs

## SYNOPSIS

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

**device usb** **device ucom** **device uvisor**

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

```
uvisor_load="YES"
```

## DESCRIPTION

The **uvisor** driver provides support for USB based PalmOS PDAs, like Handspring Visor, Palm Mxxx series, and Sony Clie.

The device is accessed through the [ucom(4)](/ucom/4.md) driver which makes it behave like a [tty(4)](/tty/4.md). The device has several ports for different purposes, each of them gets its own [ucom(4)](/ucom/4.md) device. The attach message describes the purpose of each port.

The usual Pilot tools can be used to access the attached device on the HotSync port.

## HARDWARE

The **uvisor** driver supports the following devices:

- Aceeca Mez1000 RDA

- Handspring Treo

- Handspring Treo 600

- Handspring Visor

- Palm I705

- Palm M125

- Palm M130

- Palm M500

- Palm M505

- Palm M515

- Palm Tungsten T

- Palm Tungsten Z

- Palm Zire

- Palm Zire 31

- Sony Clie 4.0

- Sony Clie 4.1

- Sony Clie 5.0

- Sony Clie PEG-S500C

- Sony Clie NX60

- Sony Clie S360

- Sony Clie TJ37

## FILES

- */dev/ttyU\**

  for callin ports

- */dev/ttyU\*.init*

  - */dev/ttyU\*.lock*

  corresponding callin initial-state and lock-state devices

- */dev/cuaU\**

  for callout ports

- */dev/cuaU\*.init*

  - */dev/cuaU\*.lock*

  corresponding callout initial-state and lock-state devices

## SEE ALSO

[tty(4)](/tty/4.md), [ucom(4)](/ucom/4.md), [usb(4)](/usb/4.md)

## HISTORY

The **uvisor** driver was adopted from NetBSD 1.5 in August 2002. This manual page was adopted from NetBSD by Tom Rhodes ⟨*trhodes@FreeBSD.org*⟩ at that time.

## BUGS

The code to provide multiple [ucom(4)](/ucom/4.md) instances has not yet been ported from NetBSD. It is unclear whether this driver works in its current state.