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Code: Alles auswählen

>>> runfile('/home/rfr/workspace/python/.temp.py', wdir=r'/home/rfr/workspace/python')
DEVICE ID 1a86:5512 on Bus 003 Address 005 =================
 bLength                :   0x12 (18 bytes)
 bDescriptorType        :    0x1 Device
 bcdUSB                 :  0x110 USB 1.1
 bDeviceClass           :   0xff Vendor-specific
 bDeviceSubClass        :    0x0
 bDeviceProtocol        :    0x2
 bMaxPacketSize0        :    0x8 (8 bytes)
 idVendor               : 0x1a86
 idProduct              : 0x5512
 bcdDevice              :  0x304 Device 3.04
 iManufacturer          :    0x0 
 iProduct               :    0x0 
 iSerialNumber          :    0x0 
 bNumConfigurations     :    0x1
  CONFIGURATION 1: 96 mA ===================================
   bLength              :    0x9 (9 bytes)
   bDescriptorType      :    0x2 Configuration
   wTotalLength         :   0x27 (39 bytes)
   bNumInterfaces       :    0x1
   bConfigurationValue  :    0x1
   iConfiguration       :    0x0 
   bmAttributes         :   0x80 Bus Powered
   bMaxPower            :   0x30 (96 mA)
    INTERFACE 0: Vendor Specific ===========================
     bLength            :    0x9 (9 bytes)
     bDescriptorType    :    0x4 Interface
     bInterfaceNumber   :    0x0
     bAlternateSetting  :    0x0
     bNumEndpoints      :    0x3
     bInterfaceClass    :   0xff Vendor Specific
     bInterfaceSubClass :    0x1
     bInterfaceProtocol :    0x2
     iInterface         :    0x0 
      ENDPOINT 0x82: Bulk IN ===============================
       bLength          :    0x7 (7 bytes)
       bDescriptorType  :    0x5 Endpoint
       bEndpointAddress :   0x82 IN
       bmAttributes     :    0x2 Bulk
       wMaxPacketSize   :   0x20 (32 bytes)
       bInterval        :    0x0
      ENDPOINT 0x2: Bulk OUT ===============================
       bLength          :    0x7 (7 bytes)
       bDescriptorType  :    0x5 Endpoint
       bEndpointAddress :    0x2 OUT
       bmAttributes     :    0x2 Bulk
       wMaxPacketSize   :   0x20 (32 bytes)
       bInterval        :    0x0
      ENDPOINT 0x81: Interrupt IN ==========================
       bLength          :    0x7 (7 bytes)
       bDescriptorType  :    0x5 Endpoint
       bEndpointAddress :   0x81 IN
       bmAttributes     :    0x3 Interrupt
       wMaxPacketSize   :    0x8 (8 bytes)
       bInterval        :    0x1
EINS
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.7/dist-packages/spyderlib/widgets/externalshell/sitecustomize.py", line 540, in runfile
    execfile(filename, namespace)
  File "/home/rfr/workspace/python/.temp.py", line 17, in <module>
    dev.set_configuration(0x1)
  File "/usr/local/lib/python2.7/dist-packages/usb/core.py", line 799, in set_configuration
    self._ctx.managed_set_configuration(self, configuration)
  File "/usr/local/lib/python2.7/dist-packages/usb/core.py", line 127, in managed_set_configuration
    self.managed_open()
  File "/usr/local/lib/python2.7/dist-packages/usb/core.py", line 105, in managed_open
    self.handle = self.backend.open_device(self.dev)
  File "/usr/local/lib/python2.7/dist-packages/usb/backend/libusb1.py", line 722, in open_device
    return _DeviceHandle(dev)
  File "/usr/local/lib/python2.7/dist-packages/usb/backend/libusb1.py", line 600, in __init__
    _check(_lib.libusb_open(self.devid, byref(self.handle)))
  File "/usr/local/lib/python2.7/dist-packages/usb/backend/libusb1.py", line 552, in _check
    raise USBError(_strerror(ret), ret, _libusb_errno[ret])
usb.core.USBError: [Errno 13] Access denied (insufficient permissions)
>>> 

Code: Alles auswählen

import usb.core
import usb.util

    # find our device
dev = usb.core.find(idVendor=0x1a86, idProduct=0x5512)

print dev

# was it found?
if dev is None:
    raise ValueError('Device not found')
    
print 'EINS'
    
# set the active configuration. With no arguments, the first
# configuration will be the active one
dev.set_configuration(0x1)
print 'ZWEI'

# get an endpoint instance
cfg = dev.get_active_configuration()
intf = cfg[(0,0)]

ep = usb.util.find_descriptor(
    intf,
    # match the first OUT endpoint
    custom_match = \
    lambda e: \
        usb.util.endpoint_direction(e.bEndpointAddress) == \
        usb.util.ENDPOINT_OUT)

assert ep is not None

# write the data
ep.write('test')