[lazarus] USB port in LAZARUS

[Daniel Fernandez]

Hi,  
Does somebody know how to send and receive raw data  through the USB 
port in win32 or Linux? 
Is it necessary to use a DDL in Win32 (which one?) or does exist a 
component for lazarus? 
In Linux I can send EPCL to Printer with this simple command: 

cat file.prn > /dev/usb/lp0 

where "file.prn" it contains the EPCL commands. 

But the problem is that I don't know how to read the status of the 
printer after the print of each card. 
I'm developing an application that need to communicate  with an USB 
printer (ELTRON P330i) to send and 
receive  EPCL commands to print cards.  
 
Any help will be appreciated.  
Thanks and regards 

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