gserial_get_console
return gserial_get_console(to_f_serial_opts(item)->port_num, page);
return gserial_get_console(to_f_serial_opts(item)->port_num, page);
EXPORT_SYMBOL_GPL(gserial_get_console);
ssize_t gserial_get_console(unsigned char port_num, char *page);