How to use libusb to communicate with bluetooth dongle

install libusb

zadig easy usb-driver install for windows http://zadig.akeo.ie/

libusb-win32 windows version

related language wrapped or binding https://sourceforge.net/p/libusb-win32/wiki/Examples/

libusb example

http://www.jollen.org/blog/2008/01/libusb_hello_world.html

ctype int array

int ==> c_int
int array ==> declear a type, intary = c_int * 10 ==> createa intarr_obj = intary() ==> using mydll.run2(intarr_obj,10) to get the data
   risk: array protection !!!
int array pointer ==>

from ctypes import *
mydll = cdll.LoadLibrary("libusbbt1.dll")
r1 = getattr(mydll, 'myrun1')
r1.restype = c_int
r1.argtypes = [c_int]

c_int_arr = c_int *10
r2 = getattr(mydll, 'myrun2')
r2.restype = c_int
r2.argtypes = [c_int_arr, c_int]
cia = c_int_arr
r2(cia, 10)

r3 = getattr(mydll, 'myrun3')
r3.restype = c_int
r3.argtypes = [c_int, c_char]
p1 = create_string_buffer(100)
p2 = ( c_char *100 )(100)
print (sizeof(p1), repr(p1.raw))
// p1.value will be printed out the whole string data
// p1[0] is the first char p1[1] is the second char

http://www.jollen.org/blog/2008/01/libusb_hello_world.html

libbusb-0.1 wrappers

https://sourceforge.net/p/libusb-win32/wiki/Examples/

libusb 's readme

o Visual Studio:

Open existing or create a new project for your application
Copy libusb.h, from the include\libusb-1.0\ directory, into your project and

make sure that the location where the file reside appears in the 'Additional

Include Directories' section (Configuration Properties -> C/C++ -> General).

Copy the relevant .lib file from MS32\ or MS64\ and add 'libusb-1.0.lib' to

your 'Additional Dependencies' (Configuration Properties -> Linker -> Input)

Also make sure that the directory where libusb-1.0.lib resides is added to

'Additional Library Directories' (Configuration Properties -> Linker

-> General)

If you use the static version of the libusb library, make sure that

'Runtime Library' is set to 'Multi-threaded DLL (/MD)' (Configuration

Properties -> C/C++ -> Code Generation).

NB: If your application requires /MT (Multi-threaded/libCMT), you need to

recompile a static libusb 1.0 library from source.

Compile and run your application. If you use the DLL version of libusb-1.0,

remember that you need to have a copy of the DLL either in the runtime

directory or in system32

Bluetooth_libusb_Usage