Mail Archives: cygwin/2005/11/01/08:45:27
Hi guys,
I have a question, I have a *fiscal* printer connected to a parallel port.
On Linux I can print just doing:
echo "Hello World" > /dev/lp0
On Cygwin I can't, I need to redirect to /dev/lpt1 ( Windows Parallel Port )
Is it normal ?
Anyway, I have made a program to print and authenticate, on Linux I can print
and authenticate documents without problem.
On Cygwin, when I try to authenticate documents with same program it blocks until
I remove the document. On Linux it works fine and It should print anyway.
Could you help me ?
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/io.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#define BASEPORT 0x378
#define BASEPORT_STATUS 0x378 + 1
int main( void ) {
unsigned char n=0;
int fd, st;
// Open Device
fd = open( "/dev/lpt1", O_RDWR | O_NONBLOCK );
// String to authenticate
write( fd, "\x1B\x7D\x01", 3 );
write( fd, "Teste\n", 6 );
// Status
ioperm( BASEPORT, 3, 1 );
n = inb( BASEPORT_STATUS );
ioperm( BASEPORT, 3, 0 );
usleep(500); // wait hardware
// print status
printf("0x%x\n", n );
// New line
write( fd, "\x0a", 1);
write( fd, "\x0a", 1);
// Authenticate
printf("Put document:\n");
usleep(500);
getchar(); // Wait keyboard
write( fd, "Authenticate", 13 );
// Status
ioperm( BASEPORT, 3, 1 );
n = inb( BASEPORT_STATUS);
ioperm( BASEPORT, 3, 0 );
usleep(500); // Wait hardware
printf("0x%x\n", n );
close( fd );
return 0;
}
Best Regards,
Douglas Schilling Landgraf
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