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), lshal(1), hal-get-property(1), hal-find-by-property(1), hal-find-by-capability(1)

AUTHOR¶

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