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.

AUTHOR

Written by David Zeuthen <[email protected]> with a lot of help from many others.