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      1 /*	$NetBSD: devopen.c,v 1.3 2005/12/11 12:19:29 christos Exp $	*/
      2 
      3 
      4 #include <sys/types.h>
      5 #include <machine/mon.h>
      6 
      7 #include <stand.h>
      8 #include "libsa.h"
      9 
     10 /*
     11  * Open the device named by the combined device/file name
     12  * given as the "fname" arg, something like: "sd()netbsd"
     13  *
     14  * However, Sun PROMs don't really let you choose which
     15  * device you will talk to.  You can only open the device
     16  * that was used to load the boot program.  Therefore, we
     17  * do not accept a "device" part in the "fname" string.
     18  * Pass the PROM device name to open in case it needs it.
     19  */
     20 int
     21 devopen(struct open_file *f, const char *fname, char **file)
     22 {
     23 	struct devsw *dp;
     24 	int error;
     25 
     26 	*file = (char*)fname;
     27 	dp = &devsw[0];
     28 	f->f_dev = dp;
     29 	error = (*dp->dv_open)(f, prom_bootdev);
     30 
     31 	return (error);
     32 }
     33