[ECOS] a question about opening a serial port fax device as a file

[Indra Antonius Simalango <indra at vlsi dot itb dot ac dot id>]

deal all,

Below are my quote snippet. It would open a serial fax device as a TFILE.  
Returns 0 if OK, 1 if busy, 2 on error. 

-------------------------------------------------------------------------
...

#define FAXFILE "/dev/ser1"

typedef struct tfilestruct {
  int fd ;
  unsigned char *ip, *iq ;
  unsigned char ibuf [ IBUFSIZE ] ;
  unsigned char *ibitorder, *obitorder ;
  int bytes, pad, lines ;
  int hwfc ;
  time_t start ;
  long mstart ;
  int rd_state ;
} TFILE ;

int ttyopen ( TFILE *f, char *fname, int reverse, int hwfc )
{
  int flags, err=0 ;

  tinit ( f, open ( fname, O_RDWR | O_NONBLOCK | O_NOCTTY ), reverse, hwfc 
) ;

  if ( f->fd < 0 ) {
    if ( errno == EBUSY ) {
      err = 1 ; 
    } else {
      err = msg ( "ES2can't open serial port %s:", fname ) ;
    }
  }
...
--------------------------------------------------------------------------

I set fname = FAXFILE

I've done this by posix-eCos programming.This file has successfully  
compiled and linked. But when it runs, it gives an error return :

	:17:20 Error : can't open serial port /dev/ser1: No such entity

I built my eCos on PC-i386 platform. I've also changed FAXFILE to 
/dev/ser0, /dev/ttyS0, but still encountered the same error. Did I miss 
something here?

-- 
	regards, 	

	IndrA on 18:49, Jul 20

	http://ic.ee.itb.ac.id/~antonius	



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