Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Rescan SCSI bus on NT 4.0

Posted on 1997-08-07
1
Medium Priority
?
468 Views
Last Modified: 2013-12-03
We are connecting a non standard scanner via SCSI to a PC using Windows NT 4.0.
We are not using a class driver, but deactivating the standard SCSISCAN device service and controlling the scanner directly by calling the API functions
CreateFile("\\\\.\\scsix:", ...) and
DeviceIoControl(...,IOCTL_SCSI_PASS_THROUGH_DIRECT,...).

All works well with the restriction, that the scanner must be switched on while booting Windows NT.

How can we avoid this restriction ?
Is there an API function to rescan the SCSI bus when the System is running ?
We intend to rescan the SCSI bus after CreateFile() fails and then try it again.

Any hint is appreciated !!
0
Comment
Question by:moosach
1 Comment
 
LVL 3

Accepted Solution

by:
msmits earned 100 total points
ID: 1403338
I did this once in a program that used the ASPI (Adaptec) interface.

The problem I detected was that new devices were detected correctly,
but removed devices still showed up in the overview of available devices.
Although you got an error when actually accessing the device.

For information on the ASPI interface goto the adaptec WEB site at:

  http://www.adaptec.com

It should be possible to do the same thing with the DeviceIoControl function,
as I believe that is what the ASPI layer is using.

0

Featured Post

 [eBook] Windows Nano Server

Download this FREE eBook and learn all you need to get started with Windows Nano Server, including deployment options, remote management
and troubleshooting tips and tricks

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article describes a technique for converting RTF (Rich Text Format) data to HTML and provides C++ source that does it all in just a few lines of code. Although RTF is coming to be considered a "legacy" format, it is still in common use... po…
For most people, the WrapPanel seems like a magic when they switch from WinForms to WPF. Most of us will think that the code that is used to write a control like that would be difficult. However, most of the work is done by the WPF engine, and the W…
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…
Screencast - Getting to Know the Pipeline

577 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question