View the most recent changes for the libusb port at: libusb.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for libusb.
The raw portfile for libusb 1.0.3 is located here:
http://libusb.darwinports.com/dports/devel/libusb/Portfile
Find related portfiles with the unique DarwinPorts.com search feature.
Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/libusb

The libusb Portfile 58266 2009-09-25 02:07:16Z ryandesign macports.org $

PortSystem 1.0

Name: libusb
Version: 1.0.3
Category: devel

Description: library for USB device access
Long Description: library for use by user level applications to access USB devices regardless of OS
Homepage: http://www.libusb.org/

Platform: darwin
license LGPLv2.1
Maintainers: wilcoxd.com:rwilcox toby brett

Master Sites: sourceforge
Checksums: md5 03af26d0c49705fa46c1f732e1018e73 sha1 d492c7f1c3f2cffcfc5d55f282a3899692662485 rmd160 ebf4eabf6a0e0e3865f617fda8d3ca2f7d11631d

use_bzip2 yes

Patch Files: patch-libusb__io.c patch-libusb__os__darwin_usb.c

livecheck.url http://sourceforge.net/projects/libusb/files/libusb-1.0/
livecheck.regex /${name}-(\[0-9\]+\\.\[0-9\]+\\.\[0-9\]+)\\.tar\\.bz2'

If you haven't already installed Darwin Ports, you can find easy instructions for doing so at the main Darwin Ports page.
Once Darwin Ports has been installed, in a terminal window and while online, type the following and hit return:

%  cd /opt/local/bin/portslocation/dports/libusb
%  sudo port install libusb  
Password: 

You will then be prompted for your root password, which you should enter. You may have to wait for a few minutes while the software is retrieved from the network and installed for you. Y ou should see something that looks similar to:

--->  Fetching libusb
--->  Verifying checksum for libusb
--->  Extracting libusb
--->  Configuring libusb
--->  Building libusb with target all

--->  Staging libusb into destroot

--->  Installing libusb

- Make sure that you do not close the terminal window while Darwin Ports is working. Once the software has been installed, you can find further information about using libusb with these commands:

%  man libusb
%  apropos libusb
%  which libusb
%  locate libusb

 Where to find more information: