Hi Eric,

> is it normal that pre_sim function is called before ofono get modem
> manufacturer and model ?
> 

Yes.  If you note, the devinfo atom is added in pre-sim.

> i would like to get model in presim to make a better patch using modem
> model with a new enum in vendor list (like simcom)
> how i can make pre_sim to wait for theses information available ?

Simply query the model/whichever numbers as part of your initialization
procedure.  e.g. run AT+FOO for the information that you need.  See how
the huawei plugin uses AT+ATI for example.

Regards,
-Denis