UVISOR(4) BSD Kernel Interfaces Manual UVISOR(4)


uvisor — USB support for the PalmOS based PDAs


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):



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) driver which makes it behave like a tty(4). The device has several ports for different purposes, each of them gets its own ucom(4) 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.


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


for callin ports


corresponding callin initial-state and lock-state devices


for callout ports


corresponding callout initial-state and lock-state devices


tty(4), ucom(4), usb(4)


The uvisor driver was adopted from NetBSD 1.5 in August 2002. This manual page was adopted from NetBSD by Tom Rhodes <trhodes [AT]> at that time.


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

BSD April 26, 2017 BSD