[chrissam42]

Originally Posted by kovidgoyal

I've dropped the dependency on pyusb (basically re-implemented it in pure python using ctypes). THis needs testing especially on OSX.

Thanks for all your great work on this.

Trying on OS X, "info" works but any "books" or "ls" results in:

release_interface() takes exactly 2 arguments (1 given)
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/Current/bin/prs500", line 8, in <module>
    load_entry_point('libprs500==0.3.3', 'console_scripts', 'prs500')()
  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/libprs500-0.3.3-py2.5.egg/libprs500/cli/main.py", line 231, in main
  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/libprs500-0.3.3-py2.5.egg/libprs500/cli/main.py", line 128, in ls
  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/libprs500-0.3.3-py2.5.egg/libprs500/communicate.py", line 167, in run_session
  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/libprs500-0.3.3-py2.5.egg/libprs500/communicate.py", line 244, in open
  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/libprs500-0.3.3-py2.5.egg/libprs500/communicate.py", line 370, in _bulk_read
  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/libprs500-0.3.3-py2.5.egg/libprs500/communicate.py", line 360, in bulk_read_packet
  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/libprs500-0.3.3-py2.5.egg/libprs500/libusb.py", line 224, in bulk_read
libprs500.libusb.Error: Could not read 24 bytes on the bulk bus. Read: 0 bytes.