hal_init

NAME
SYNTAX
ARGUMENTS
DESCRIPTION
REALTIME CONSIDERATIONS
RETURN VALUE

NAME

hal_init − Sets up HAL and RTAPI

SYNTAX

int hal_init(const char *modname)

ARGUMENTS

modname

The name of this hal module

DESCRIPTION

hal_init sets up HAL and RTAPI. It must be called by any module that intends to use the API, before any other RTAPI calls.

modname can optionally point to a string that identifies the module. The string will be truncated at RTAPI_NAME_LEN characters. If modname is NULL, the system will assign a name.

REALTIME CONSIDERATIONS

Call only from within user or init/cleanup code, not from relatime tasks.

RETURN VALUE

On success, returns a positive integer module ID, which is used for subsequent calls to hal and rtapi APIs. On failure, returns a HAL error code.