LIBUSB Win32 Installation
for Dallas Semiconductor MAXIM's
DS2490-based USB 1-Wire host devices
(DS9490R and DS9490B)
This file contains installation instructions for the libusb drivers for
use with DS2490-based USB 1-Wire host devices on Windows 32-bit platforms
(Windows 98,ME,2K,XP).
Located in the "install" directory are the following drivers and files:
libusb0.dll - libusb API dll
libusbds.inf - libusb install file
libusbfl.sys - libusb driver file
libusbis.exe - libusb installation helper program
libusbst.sys - libusb driver file
testlibusb.exe - command line test program to see if libusb working correctly.
testlibusb-win.exe - windows gui test program similar to testlibusb.exe.
libusb-win32-device-bin-0.1.8.0.tar.gz - libusb driver binary distribution
Follow these procedures to install the libusb drivers.
1) Unplug any 1-Wire USB adapters.
2) Uninstall any 1-Wire USB drivers that you may have previously loaded.
3) If uninstalling 1-Wire USB drivers, please do the following:
a. Remove the "inf" file from the windows\inf directory (and/or,
windows\inf\other in Windows 98 or ME). In Windows 98/ME, the
inf file may be called DS2490.inf. In Windows 2000/XP, remove the
oemxx.inf file where xx stands for the number assigned to the file
when Windows installs the drivers and "inf" file.
b. Remove (or "delete") the driver from the device manager list (in
Control Panel).
c. Remove the DS2490.SYS driver from the windows\system32\drivers
directory.
4) Plug in the 1-Wire USB adapter.
5) This should prompt the "Add New Hardware" wizard to run. If not, the
wizard can be run from the Control Panel.
6) Point the wizard to the "install" directory where the libusbds.inf file
is located and continue the installation. Please ignore the warning message
about driver signing. While installing, you should see the following
string displayed:
"Dallas Semiconductor LIBUSB 1-Wire USB Adapter, Version 02/15/2004, 0.1.8.0
7) When finished, you can run the testlibusb-win.exe to see if libusb was
installed correctly. It should enumerate the usb devices attached to
the computer being used.
If needed, the entire binary distribution of the libusb drivers
has been included (see the file named:
libusb-win32-device-bin-0.1.8.0.tar.gz in the install directory).
The pertinent libusb licenses installation file are also available in the
binary distribution.
The libusb sourceforge project can be found here (support for
Linux, MacOSX, FreeBSD, etc):
http://libusb.sourceforge.net
The Win32 port of libusb can be found here:
http://libusb-win32.sourceforge.net
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.