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 must point to a string that identifies the module. The string may be no longer than HAL_NAME_LEN characters.

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.