BuddyPress.org

I guess function xprofile_sync_wp_profile() requires that the fullname (BP_XPROFILE_FULLNAME_FIELD_NAME) is already in the database and that the function can only be run after the user is already logged in.

So I guess I need to write another function that takes the fullname straight from the registration form and can be run with the user_register hook.

Where can I find the functions that take the data from the registration form and store them? I could probably use them as examples to come up with my own fuction for a plugin.

Edit: I guess all the magic happens in bp-xprofile-signup.php (function xprofile_load_signup_meta())? Is there a way to add a x-profile/wp_usermeta synchronization function to that file?