passing argument 1 of 'fscanf' from incompatible pointer type

Hey, im trying to write a program that computes the determinant of a 3x3 matrix from another file. Ive only tried to input the file so far and i keep getting the error 'passing argument 1 of 'fscanf' from incompatible pointer type' but cant work out whats wrong.

Code:

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
  
#define orderOfMatrix 3
  
  int main(int argc, char* argv[])
 { 
  
 FILE         *input;
 const char    inp_fn[]="matrix.dat";
 int 	i, j, m[3][3], det;
 
 /*Open file */
  input = fopen(inp_fn, "r");
  
  /* Check the pointers to files are not NULL */
    if( (input != (FILE*) NULL))
	{
	for(i=0; i<orderOfMatrix; i++)
	 {
		for(j=0; j<orderOfMatrix; j++)
		{
			fscanf(inp_fn, "%lf \n", &m[i][j]);  
		}
	 }
		return 0;
	}
  else
    {
	 printf("*** Could not open input file! ***\n");
	}
	 
	/*close file */
	fclose(input);
		
	return(EXIT_SUCCESS);
}

You pass the FILE* variable, not the filename.

ah of course, works now, thank you!

Code:

#include "stdio.h"
main(int argc,char *argv[])
{
	int i;
	char name[20];
	unsigned char *s;
	void load(unsigned char *,char *);
	printf("Input open filename:\n");
	fscanf("%s",name);
	i=0;
	s=(unsigned char *) malloc(sizeof(unsigned char)*1000);
	load(s,name);
	while(*s);
	{
		if(1%30==0)
			printf("\n");
			s++;
			i++;
	}
	free(s);
}
void load (unsigned char *s,char name[])
{
	FILE *fp;
	if((fp=fopen(name,"rb"))==NULL)
	{
		fprintf(stderr,"cannot open this file.\n");
		return;
	}
	fread(s,sizeof(unsigned char ),1000,fp);
	fclose(fp);
	return;
}

"9: warning: passing arg 1 of `fscanf' from incompatible pointer type"
I still do not understand!!
why?
It's here----fscanf("%s",name);
any quetion?

No question but an answer:
fscanf needs a Filepointer as first argument.
#include "stdio.h" is newbie stuff, better is
#include <stdio.h>