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Diffstat (limited to 'pyserial/examples/scanwin32.py')
| -rw-r--r-- | pyserial/examples/scanwin32.py | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/pyserial/examples/scanwin32.py b/pyserial/examples/scanwin32.py deleted file mode 100644 index 6d58d89..0000000 --- a/pyserial/examples/scanwin32.py +++ /dev/null @@ -1,200 +0,0 @@ -import ctypes -import re - -def ValidHandle(value): - if value == 0: - raise ctypes.WinError() - return value - -NULL = 0 -HDEVINFO = ctypes.c_int -BOOL = ctypes.c_int -CHAR = ctypes.c_char -PCTSTR = ctypes.c_char_p -HWND = ctypes.c_uint -DWORD = ctypes.c_ulong -PDWORD = ctypes.POINTER(DWORD) -ULONG = ctypes.c_ulong -ULONG_PTR = ctypes.POINTER(ULONG) -#~ PBYTE = ctypes.c_char_p -PBYTE = ctypes.c_void_p - -class GUID(ctypes.Structure): - _fields_ = [ - ('Data1', ctypes.c_ulong), - ('Data2', ctypes.c_ushort), - ('Data3', ctypes.c_ushort), - ('Data4', ctypes.c_ubyte*8), - ] - def __str__(self): - return "{%08x-%04x-%04x-%s-%s}" % ( - self.Data1, - self.Data2, - self.Data3, - ''.join(["%02x" % d for d in self.Data4[:2]]), - ''.join(["%02x" % d for d in self.Data4[2:]]), - ) - -class SP_DEVINFO_DATA(ctypes.Structure): - _fields_ = [ - ('cbSize', DWORD), - ('ClassGuid', GUID), - ('DevInst', DWORD), - ('Reserved', ULONG_PTR), - ] - def __str__(self): - return "ClassGuid:%s DevInst:%s" % (self.ClassGuid, self.DevInst) -PSP_DEVINFO_DATA = ctypes.POINTER(SP_DEVINFO_DATA) - -class SP_DEVICE_INTERFACE_DATA(ctypes.Structure): - _fields_ = [ - ('cbSize', DWORD), - ('InterfaceClassGuid', GUID), - ('Flags', DWORD), - ('Reserved', ULONG_PTR), - ] - def __str__(self): - return "InterfaceClassGuid:%s Flags:%s" % (self.InterfaceClassGuid, self.Flags) - -PSP_DEVICE_INTERFACE_DATA = ctypes.POINTER(SP_DEVICE_INTERFACE_DATA) - -PSP_DEVICE_INTERFACE_DETAIL_DATA = ctypes.c_void_p - -class dummy(ctypes.Structure): - _fields_=[("d1",ctypes.DWORD), ("d2",ctypes.CHAR)] -SIZEOF_SP_DEVICE_INTERFACE_DETAIL_DATA_A = ctypes.sizeof(dummy) - -SetupDiDestroyDeviceInfoList = ctypes.windll.setupapi.SetupDiDestroyDeviceInfoList -SetupDiDestroyDeviceInfoList.argtypes = [HDEVINFO] -SetupDiDestroyDeviceInfoList.restype = BOOL - -SetupDiGetClassDevs = ctypes.windll.setupapi.SetupDiGetClassDevsA -SetupDiGetClassDevs.argtypes = [ctypes.POINTER(GUID), PCTSTR, HWND, DWORD] -SetupDiGetClassDevs.restype = ValidHandle # HDEVINFO - -SetupDiEnumDeviceInterfaces = ctypes.windll.setupapi.SetupDiEnumDeviceInterfaces -SetupDiEnumDeviceInterfaces.argtypes = [HDEVINFO, PSP_DEVINFO_DATA, ctypes.POINTER(GUID), DWORD, PSP_DEVICE_INTERFACE_DATA] -SetupDiEnumDeviceInterfaces.restype = BOOL - -SetupDiGetDeviceInterfaceDetail = ctypes.windll.setupapi.SetupDiGetDeviceInterfaceDetailA -SetupDiGetDeviceInterfaceDetail.argtypes = [HDEVINFO, PSP_DEVICE_INTERFACE_DATA, PSP_DEVICE_INTERFACE_DETAIL_DATA, DWORD, PDWORD, PSP_DEVINFO_DATA] -SetupDiGetDeviceInterfaceDetail.restype = BOOL - -SetupDiGetDeviceRegistryProperty = ctypes.windll.setupapi.SetupDiGetDeviceRegistryPropertyA -SetupDiGetDeviceRegistryProperty.argtypes = [HDEVINFO, PSP_DEVINFO_DATA, DWORD, PDWORD, PBYTE, DWORD, PDWORD] -SetupDiGetDeviceRegistryProperty.restype = BOOL - - -GUID_CLASS_COMPORT = GUID(0x86e0d1e0L, 0x8089, 0x11d0, - (ctypes.c_ubyte*8)(0x9c, 0xe4, 0x08, 0x00, 0x3e, 0x30, 0x1f, 0x73)) - -DIGCF_PRESENT = 2 -DIGCF_DEVICEINTERFACE = 16 -INVALID_HANDLE_VALUE = 0 -ERROR_INSUFFICIENT_BUFFER = 122 -SPDRP_HARDWAREID = 1 -SPDRP_FRIENDLYNAME = 12 -ERROR_NO_MORE_ITEMS = 259 - -def comports(available_only=True): - """This generator scans the device registry for com ports and yields port, desc, hwid. - If available_only is true only return currently existing ports.""" - flags = DIGCF_DEVICEINTERFACE - if available_only: - flags |= DIGCF_PRESENT - g_hdi = SetupDiGetClassDevs(ctypes.byref(GUID_CLASS_COMPORT), None, NULL, flags); - #~ for i in range(256): - for dwIndex in range(256): - did = SP_DEVICE_INTERFACE_DATA() - did.cbSize = ctypes.sizeof(did) - - if not SetupDiEnumDeviceInterfaces( - g_hdi, - None, - ctypes.byref(GUID_CLASS_COMPORT), - dwIndex, - ctypes.byref(did) - ): - if ctypes.GetLastError() != ERROR_NO_MORE_ITEMS: - raise ctypes.WinError() - break - - dwNeeded = DWORD() - # get the size - if not SetupDiGetDeviceInterfaceDetail( - g_hdi, - ctypes.byref(did), - None, 0, ctypes.byref(dwNeeded), - None - ): - # Ignore ERROR_INSUFFICIENT_BUFFER - if ctypes.GetLastError() != ERROR_INSUFFICIENT_BUFFER: - raise ctypes.WinError() - # allocate buffer - class SP_DEVICE_INTERFACE_DETAIL_DATA_A(ctypes.Structure): - _fields_ = [ - ('cbSize', DWORD), - ('DevicePath', CHAR*(dwNeeded.value - ctypes.sizeof(DWORD))), - ] - def __str__(self): - return "DevicePath:%s" % (self.DevicePath,) - idd = SP_DEVICE_INTERFACE_DETAIL_DATA_A() - idd.cbSize = SIZEOF_SP_DEVICE_INTERFACE_DETAIL_DATA_A - devinfo = SP_DEVINFO_DATA() - devinfo.cbSize = ctypes.sizeof(devinfo) - if not SetupDiGetDeviceInterfaceDetail( - g_hdi, - ctypes.byref(did), - ctypes.byref(idd), dwNeeded, None, - ctypes.byref(devinfo) - ): - raise ctypes.WinError() - - # hardware ID - szHardwareID = ctypes.create_string_buffer('\0' * 250) - if not SetupDiGetDeviceRegistryProperty( - g_hdi, - ctypes.byref(devinfo), - SPDRP_HARDWAREID, - None, - ctypes.byref(szHardwareID), ctypes.sizeof(szHardwareID) - 1, - None - ): - # Ignore ERROR_INSUFFICIENT_BUFFER - if ctypes.GetLastError() != ERROR_INSUFFICIENT_BUFFER: - raise ctypes.WinError() - - # friendly name - szFriendlyName = ctypes.create_string_buffer('\0' * 250) - if not SetupDiGetDeviceRegistryProperty( - g_hdi, - ctypes.byref(devinfo), - SPDRP_FRIENDLYNAME, - None, - ctypes.byref(szFriendlyName), ctypes.sizeof(szFriendlyName) - 1, - None - ): - # Ignore ERROR_INSUFFICIENT_BUFFER - if ctypes.GetLastError() != ERROR_INSUFFICIENT_BUFFER: - raise ctypes.WinError() - try: - port_name = re.search(r"\((.*)\)", szFriendlyName.value).group(1) - except AttributeError,msg: - port_name = "???" - yield port_name, szFriendlyName.value, szHardwareID.value - - SetupDiDestroyDeviceInfoList(g_hdi) - - -if __name__ == '__main__': - import serial - for port, desc, hwid in comports(): - try: - print "%s: %s (%s)" % (port, desc, hwid) - print " "*10, serial.Serial(port) #test open - except serial.serialutil.SerialException: - print "can't be openend." - # list of all ports the system knows - print "-"*60 - for port, desc, hwid in comports(False): - print "%-10s: %s (%s)" % (port, desc, hwid) |