[pyusb-users] pyusb dev.read() problem

[<Ale...@gm...>]

Hi, 
You're right, it's libusb-win32, the version is libusb-win32-device-bin-20100519. 
The output from testlibusb-win.exe is: 

DLL version:    1.1.14.0 
Driver version: 1.1.14.0 

bus/device  idVendor/idProduct 
bus-0/\\.\libusb0-0001--0x1ef6-0x5648     1EF6/5648 
- Manufacturer : unknown 
- Product      : RIU PDS USB     
- Serial Number: 56772001000 
  wTotalLength:         32 
  bNumInterfaces:       1 
  bConfigurationValue:  1 
  iConfiguration:       0 
  bmAttributes:         c0h 
  MaxPower:             0 
    bInterfaceNumber:   0 
    bAlternateSetting:  0 
    bNumEndpoints:      2 
    bInterfaceClass:    0 
    bInterfaceSubClass: 0 
    bInterfaceProtocol: 0 
    iInterface:         0 
      bEndpointAddress: 01h 
      bmAttributes:     02h 
      wMaxPacketSize:   512 
      bInterval:        0 
      bRefresh:         0 
      bSynchAddress:    0 
      bEndpointAddress: 81h 
      bmAttributes:     02h 
      wMaxPacketSize:   512 
      bInterval:        0 
      bRefresh:         0 
      bSynchAddress:    0 



The RIU should respond either with "good" or "check condition". Well, actually that is what should be returned when you use the 

The regular Windows driver. As I am trying to communicate with the device via python I am not sure if writing to endpoint 0x01

Will return something on endpoint 0x81, sorry for that, I just realized that when I was reading your reply. I thought there was 

a general possibilty to do simple write/read commands, just to check if communication is possible. 

Best regards, 
Alex
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