;   /* Scan the page description tables of the pages to service */  for (page_number = 0; page_number < PAGES_TO_SERVICE; page_number++) {   for (pdt_entry_addr = PDT_START; pdt_entry_addr > PDT_END;     pdt_entry_addr -= PDT_ENTRY_SIZE) {    retval = synaptics_rmi0_i0c_read(rmi0_data,     