which is the USB register while using Serial to USB converter in API in i.mx53QSB ubuntu10.04

[shailendraGour]

Hi ,

      which is the USB register while using Serial to USB converter in API in i.mx53QSB ubuntu10.04 ,I am unable to find the Register ,I am using Serial to USB converter in GSM communication ,But i am betting it so plz help me ,

                     Thanks N Regard