Le 16/09/2016 à 01:21, Joe a écrit : > Am 15.09.2016 um 12:11 schrieb Joe: >>>> What's the best method to install it? >> Solved: pip install hidapi >> > This is now working with the usb hid interface of the UT61B DMM: > hid.device.get_manufacturer_string, > hid.device.get_product_string, > hid.device.get_serial_number_string and > hid.enumerate. > > But I could not find descriptions or documentation or samples of the > following methods and properties of hid.device: > error, close, open, open_path, read, write, send_feature_report. > Unfortunetaly I see no source in the package, only a pyd file. > > Any hint, any idea? > Thanx -- Joe > Even if it is not the right place (PyUSB mailing list) here is an example :
class MyDevice(object): def __init__(self, vendor_id=0xXXXX, product_id=0xYYYY, path=None): self.vendor_id = vendor_id self.product_id = product_id self.path = path if path : self.__dev = hid.Device(path=path) else : self.__dev = hid.Device(self.vendor_id, self.product_id) self.manufacturer = self.__dev.manufacturer self.product = self.__dev.product def GetFeature1(self): return struct.unpack("B", self.__dev.get_feature_report(HID_FEATURE_1, 5)[4])[0] def SetFeature2(self, value): self.__dev.send_feature_report(struct.pack("<BBBBL", HID_FEATURE_2 0,0,0, value)) def RequestSomeData(self): self.__dev.write(struct.pack("BBBB", HID_REPORT_OUT_REQUEST_SOME_DATA, 0,0,0)) def GetData(self): data = self.__dev.read(64, 1000) if data : report_id = struct.unpack("B", data[0])[0] if report_id == HID_REPORT_IN_MY_NOP : return None, elif report_id == HID_REPORT_IN_1 : value = struct.unpack("<L", data[4:8])[0] return 1, value elif report_id == HID_REPORT_IN_2 : value = struct.unpack("<LHHHHHHHHHHHH", data[4:]) return 2, value[0], value[1:] else : print "???" d = MyDevice() d.SetFeature2(2) while True : data = d.GetData() if data : if data[0] == None : print "NOP" elif data[0] == 1 : print "1 : %8.8X" % data[1] elif data[0] == 2 : print "2 : %3.3X" % data[1], data[2] Hope this helps. Nicolas ------------------------------------------------------------------------------ _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users