Subject: ot: rescan of scsi bus
To: None <>
From: nm <>
List: current-users
Date: 02/09/2000 14:48:49
A while back I requested some code that would rescan
the scsi bus on a 1.3.3 system.  The code that was
provided (sorry I cannot credit the author here, I
cannot find the original piece of code) worked great.

It seems that I need a new scanscsi.c for 1.4.1.

Would something like the following do it 'the right

The goal here is to be able to plug in a new hard disk,
tape, or cdrom drive, and then run 'scanscsi' and have
the device work without requiring a reboot.  (yes, this
may be dangerous as far as the hardware goes...)


Nick Maniscalco

#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <strings.h>
#include <sys/scsiio.h>

int main(int argc, char *argv[]) {
	struct scbusioscan_args s;
	int fd;

	s.sa_target = -1;
	s.sa_lun = -1;
	fd = open("/dev/scsibus0",O_RDWR,0);
	if (fd < 0) {
		fprintf(stderr,"could not open.  %s\n",strerror(errno));
	if(ioctl(fd,SCBUSIOSCAN,&s) < 0) {

// Yes the code is ugly, but for now I am just feeling around.