2013-04-06 16:48:33 +02:00

33 lines
786 B
C

/* $NetBSD: devopen.c,v 1.3 2005/12/11 12:19:29 christos Exp $ */
#include <sys/types.h>
#include <machine/mon.h>
#include <stand.h>
#include "libsa.h"
/*
* Open the device named by the combined device/file name
* given as the "fname" arg, something like: "sd()netbsd"
*
* However, Sun PROMs don't really let you choose which
* device you will talk to. You can only open the device
* that was used to load the boot program. Therefore, we
* do not accept a "device" part in the "fname" string.
* Pass the PROM device name to open in case it needs it.
*/
int
devopen(struct open_file *f, const char *fname, char **file)
{
struct devsw *dp;
int error;
*file = (char*)fname;
dp = &devsw[0];
f->f_dev = dp;
error = (*dp->dv_open)(f, prom_bootdev);
return (error);
}