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Old 09-06-2007, 09:42 AM   #1
LQ Newbie
Registered: Dec 2006
Posts: 17

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Thumbs up Ioctl Fail In Some Systems Like Redhat 9, Kernel 2.4.20-8

I am having a program which gives details of pci slots like sata slot and usb slots.

But this program is not working for some systems like Redhat 9 having kernel 2.4.20-8

I am using ioctl SCSI_IOCTL_GET_PCI , which is not working in this system .

So what should I have to do for getting information of slots in this Redhat 9 pc.

Please give me any help if possible ...

Thanking you in advance ...

The Program is given below :


#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include <scsi/sg.h>
#include <scsi/scsi.h>
#include <string.h>

#define SUCCESS 1
#define FAILURE -1

#define SG_X "/dev/sg%d"

#define SCSI_IOCTL_GET_PCI 0x5387

int scan_sg( int sg )
char buffer[20] = { '\0' };
int fd = -1;

snprintf(buffer, sizeof(buffer), SG_X, sg);

fd = open(buffer, O_RDWR | O_NONBLOCK);

if (fd < 0)
// printf(" Inside scan_sg fd open failed returning false \n" );
return FAILURE;

char slot_name[64] = { '\0' };
memset(slot_name, 0, sizeof(slot_name));

if (ioctl(fd, SCSI_IOCTL_GET_PCI, slot_name) >= 0)
printf("SLOT NAME :- %s\n", slot_name);//parent = n.findChildByBusInfo(guessBusInfo(hw::strip(slot_name)));


return SUCCESS;

int main()
int i;

for(i = 0 ; i <=10;i++)

return 0;

Old 09-07-2007, 07:27 AM   #2
Senior Member
Registered: Nov 2003
Location: Perth, Western Australia
Distribution: Ubuntu, Debian, Various using VMWare
Posts: 2,088

Rep: Reputation: 61
The only help I can offer - upgrade from Redhat 9.

This distro has been unsupported for about 3.5 years, and has not had security updates since then. Debugging your code for such an old distro is a waste of time and effort, unless you have a particular reason to use RH9.

You will have better success with a modern distro, such as Fedora 7 (successor to Redhat Linux).



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