Hello,
I am trying to access on my OCR device that reads from invoice the number
and fill the input text box in the webpage.
I have the DLL for Windows and the file for Mac osx but I can't really turn
on the device.
This is the lsusb:
$ lsusb -vv -d0852:0005
Bus 001 Device 010: ID 0852:0005 CSEM
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 0
bDeviceProtocol 255
bMaxPacketSize0 64
idVendor 0x0852 CSEM
idProduct 0x0005
bcdDevice 0.01
iManufacturer 1 Xemtec SA
iProduct 2 Xemscan
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 55
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 200mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 1
bNumEndpoints 4
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0005 1x 5 bytes
bInterval 10
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x88 EP 8 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0284 1x 644 bytes
bInterval 1
Device Status: 0x0000
(Bus Powered)
I am trying to get it works under linux because there is nothing ready and
I would like to avoid to install windows.
First thing that I found is that the Device status changes when you plug
the first time and then after a few seconds it changes to 0x000.
This is the status when you plug it in:
Device Status: 0x0002
(Bus Powered)
Remote Wakeup Enabled
It's flashing for a few second and then off, on windows it turns on when
is reading the numbers.
So far I have made this:
dev = usb.core.find(idVendor=0x0852, idProduct=0x0005)
try:
dev.set_configuration()
except usb.core.USBError as e:
sys.exit("Could not set configuration")
endpointWrite = dev[0][(0,1)][1]
endpointRead = dev[0][(0,1)][0]
print usb.control.get_status(dev)
print usb.legacy.DeviceHandle(dev).interruptRead(0x82,0x0005)
But the output is:
0
Traceback (most recent call last):
File "test.py", line 20, in <module>
print usb.legacy.DeviceHandle(dev).interruptRead(0x82,0x0005)
File "/usr/local/lib/python2.7/dist-packages/usb/legacy.py", line 182, in
interruptRead
return self.dev.read(endpoint, size, self.__claimed_interface, timeout)
File "/usr/local/lib/python2.7/dist-packages/usb/core.py", line 662, in
read
fn = fn_map[self._ctx.get_endpoint_type(self, endpoint, intf)]
File "/usr/local/lib/python2.7/dist-packages/usb/core.py", line 180, in
get_endpoint_type
etype = util.endpoint_type(e.bmAttributes)
AttributeError: 'NoneType' object has no attribute 'bmAttributes'
I tried to use read, interruptWrite, etc.. but always is giving me this
error, it seems that I have turn it on or something else.
Can someone help me with get this device working?
thanks :)
Christian
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