ich habe pyusb verwenden wollen und es geschah folgendes:
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')System ist Linux.
Gruss
Robert