misc device question

[Kevin Wilson]

Hello,kernelnewbies

I am trying to develop a misc driver in 3.7.0 kernel.

As a basis I copy and paste this code, *without any change*,

http://virtlog.com/2008/03/25/linux-miscdevice-sample/

And build it.
after insmod I have :
[root at n miscDevice]\>ls -al /dev/mymisc
crw------- 1 root root 10, 59 Dec 19 10:24 /dev/mymisc


However, when trying to open this file I get:
open: No such file or directory

Any ideas why ?

The program with which I try to open the device is simple, a few lines
following here:
int main()
{
  int fd;

  fd = open("/dev/mymodule", O_RDONLY);
	if (fd == -1) {
		perror("open");
		exit(1);
	}
  printf("open succeeded\n");	

}

Any ideas why this error ?

rgs,
Kevin