---
name: "hal-set-property"
section: "1"
platform: "linux"
package: "hal"
version: "0.5.14-8"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/hal-set-property"
---

# hal-set-property(1)

set a property on a device object

## NAME

hal-set-property - set a property on a device object

## SYNOPSIS

**hal-set-property** \[options\]

## DESCRIPTION

*hal-set-property* sets a property on a device object in the **HAL** device database. For more information about both the big picture and specific **HAL** properties, refer to the *HAL spec* which can be found in */usr/share/doc/hal-doc/spec/hal-spec.html* depending on the distribution.

## OPTIONS

The following options are supported:

- *--udi*

  The UDI (*Unique Device Identifier*) of the device object.

- *--key*

  The name of the property.

- *--int*

  Set value property of the property to a 32-bit signed integer. The value passed is assumed to be decimal unless it's prefixed with **0x** or **x** for hexadecimal values.

- *--uint64*

  Set value property of the property to a 64-bit unsigned integer. The value passed is assumed to be decimal unless it's prefixed with **0x** or **x** for hexadecimal values.

- *--string*

  Set value property of the property to a string.

- *--double*

  Set value property of the property to a floating point number.

- *--bool*

  Set value property of the property to boolean, e.g.  **true** or  **false.**

- *--strlist-pre*

  Prepend an item to a string list.

- *--strlist-post*

  Append an item to a string list.

- *--strlist-rem*

  Remove an item from a string list.

- *--remove*

  Remove a property.

- *--help*

  Print out usage.

- *--version*

  Print the version.

## RETURN VALUE

If setting the property succeeds, this program will exit with exit code 0. On errors a non-zero the program will exit with a non-zero exit code. Note that setting properties on the **HAL** device database usually requires super user privileges.

## BUGS

Please send bug reports to either the distribution or the HAL mailing list, see  *http://lists.freedesktop.org/mailman/listinfo/hal* on how to subscribe.

## SEE ALSO

[*hald*(8)](/hald/8.md),  [*lshal*(1)](/lshal/1.md),  [*hal-get-property*(1)](/hal-get-property/1.md), [*hal-find-by-property*(1)](/hal-find-by-property/1.md), [*hal-find-by-capability*(1)](/hal-find-by-capability/1.md)

## AUTHOR

Written by David Zeuthen \<david@fubar.dk\> with a lot of help from many others.