title: libusb won't install?
body: <p>I am trying to build a program that uses libusb and I get a lot of errors such as</p>
  
  <pre><code>i2cbrdg.c:84: error: implicit declaration of function ‘usb_init’
  i2cbrdg.c:88: error: implicit declaration of function ‘usb_find_busses’
  i2cbrdg.c:89: error: implicit declaration of function ‘usb_find_devices’
  i2cbrdg.c:90: error: implicit declaration of function ‘usb_get_busses’
  </code></pre>
  
  <p>So I am trying to install libusb, but am having troubles doing so. I have installed libusb-dev and that appears to be okay. When I do dpkg -L libusb-dev, I get a list of directories. However, when I dpkg -L libusb, I get</p>
  
  <pre><code>Package `libusb' is not installed.
  Use dpkg --info (= dpkg-deb --info) to examine archive files,
  and dpkg --contents (= dpkg-deb --contents) to list their contents.
  </code></pre>
  
  <p>I have done sudo apt-get install libusb-1.0 and that went okay. When I try to do it again I get the message </p>
  
  <pre><code>Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Note, selecting 'libusb-1.0-0' for regex 'libusb-1.0'
  Note, selecting 'libusb-1.0-0-dev' for regex 'libusb-1.0'
  libusb-1.0-0-dev is already the newest version.
  libusb-1.0-0 is already the newest version.
  0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
  </code></pre>
  
  <p>I have also tried installing it with yum and it still says that it is not installed. I have downloaded the tar for the package and ran make on that, which also seemed to be okay (no explicit error messages). I don't really know what to try next. The dpkg message just keeps telling me its not installed. Can anyone give me a direction to go in? Any help is appreciated.</p>