HAL_SET_CONSTRUCTOR(3)

NAME
hal_set_constructor - sets the constructor function for this component

SYNTAX

typedef int (hal_constructor_t)(const char prefix, const char* arg); int hal_set_constructor(int comp_id, hal_constructor_t constructor)

ARGUMENTS

comp_id
    A HAL component identifier returned by an earlier call to hal_init.

prefix
    The prefix to be given to the pins, parameters, and functions in the new instance.

arg
    An argument that may be used by the component to customize this instance.

DESCRIPTION

As an experimental feature in HAL 2.1, components may be constructable. Such a component may create pins and parameters not only at the time the module is loaded, but it may create additional pins and parameters, and functions on demand.

RETURN VALUE

Returns a HAL status code.

SEE ALSO

halcmd(1)