"/Library/Python/2.6/site-packages/usb/core.py"
sounds like Mac OSX
On Sat, Apr 10, 2010 at 9:50 PM, Wander Lairson <wander.lair...@gmail.com>wrote:
> Hello Kevin,
>
> What OS are you using?
>
> Wander
>
> 2010/4/10 Kevin Kilroy <kevkil...@googlemail.com>:
> > Hi,
> >
> > I have an HID device that I am trying to read from, but I am receiving
> the
> > following error:
> >
> > usb.core.USBError: Access denied (insufficient permissions)
> >
> > Here is a snippet from my code:
> >
> > import usb
> > import usb.core
> >
> > myVendorId = 53769
> > myProductId = 5377
> > dev = usb.core.find(idVendor=myVendorId, idProduct=myProductId)
> > dev.set_configuration()
> > test = dev.read(0x81,8)
> > print "res: ",test
> >
> > The output from running usbenum.py is:
> >
> > Device:
> > Device class: 0
> > Device sub class: 0
> > Device protocol: 0
> > Max packet size: 8
> > idVendor: 53769 (0xd209)
> > idProduct: 5377 (0x1501)
> > Device Version: 25
> > Configuration: 1
> > Total length: 109
> > selfPowered: 0
> > remoteWakeup: 0
> > maxPower: 1000
> > Interface: 0
> > Alternate Setting: 0
> > Interface class: 3
> > Interface sub class: 0
> > Interface protocol: 0
> > Endpoint: 0x81
> > Type: 3
> > Max packet size: 8
> > Interval: 10
> > Alternate Setting: 0
> > Interface class: 3
> > Interface sub class: 0
> > Interface protocol: 0
> > Endpoint: 0x82
> > Type: 3
> > Max packet size: 20
> > Interval: 10
> > Alternate Setting: 0
> > Interface class: 3
> > Interface sub class: 0
> > Interface protocol: 0
> > Endpoint: 0x83
> > Type: 3
> > Max packet size: 16
> > Interval: 10
> > Alternate Setting: 0
> > Interface class: 3
> > Interface sub class: 1
> > Interface protocol: 2
> > Endpoint: 0x84
> > Type: 3
> > Max packet size: 8
> > Interval: 10
> >
> >
> > I have tried reading from the other endpoints but get the following
> error:
> >
> > File "/Library/Python/2.6/site-packages/usb/core.py", line 163, in
> > get_endpoint_type
> > type = util.endpoint_type(e.bmAttributes)
> > AttributeError: 'NoneType' object has no attribute 'bmAttributes'
> >
> > I'm a newbie to usb but I'm learning & reading the USB Complete book, so
> I'd
> > really appreciate it if somebody could help me to retrieve data from my
> USB
> > HID device.
> >
> > Thanks in advance,
> >
> > Kevin
> >
> >
> ------------------------------------------------------------------------------
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> > _______________________________________________
> > pyusb-users mailing list
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> > https://lists.sourceforge.net/lists/listinfo/pyusb-users
> >
> >
>
>
> ------------------------------------------------------------------------------
> Download Intel® Parallel Studio Eval
> Try the new software tools for yourself. Speed compiling, find bugs
> proactively, and fine-tune applications for parallel performance.
> See why Intel Parallel Studio got high marks during beta.
> http://p.sf.net/sfu/intel-sw-dev
> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/pyusb-users
>
------------------------------------------------------------------------------
Download Intel® Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
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