USBPrinter
fPrinters.Put(portId.String(), new USBPrinter(portId, portName,
USBPrinter::USBPrinter(const BString& id, const BString& name,
USBPrinter::Write(const void *buf, size_t size)
USBPrinter::Read(void *buf, size_t size)
USBPrinter(const BString& id, const BString& name,
USBPrinter *Printer(const BString& key);
typedef HashMap<HashString,USBPrinter*> PrinterMap;
USBPrinter *fPrinter;
USBPrinter *