Please, find attached a little patch that should fix your problem. I could
not test it because my dev machine died a month ago. Please, report if it
worked thus I can commit it.
Wander
2011/2/23 Sarah Messer <ikust...@yahoo.com>
> of course, as soon as I hit "send", i find this:
> http://pyusb.sourceforge.net/docs/1.0/tutorial.html
>
> ...
>
> -Sarah
>
> --- On *Wed, 2/23/11, Sarah Messer <ikust...@yahoo.com>* wrote:
>
>
> From: Sarah Messer <ikust...@yahoo.com>
> Subject: [pyusb-users] TypeError with legacy
> DeviceHandle.claimInterface(Interface)
> To: pyusb-users@lists.sourceforge.net
> Date: Wednesday, February 23, 2011, 2:55 PM
>
>
> Hello,
>
> I've recently updated my OS (to openSuSe 11.3), after changing my
> motherboard (long story). Probably more relevant is the fact that at the
> same time I'm going from pyusb 0.1ish to pyusb-1.0.0-a1
>
> Code that had been working well is now going through the
> compatibility/legacy layer, which seems to _almost_ work. The issue appears
> when I claim the USB interface. Here's the tail of the traceback:
>
> File "./acquisition/scope.py", line 975, in _foundrightscope
> self.hand.claimInterface(self.face)
> File "/usr/local/lib/python2.6/site-packages/usb/legacy.py", line 225, in
> claimInterface
> util.claim_interface(self.dev, interface)
> File "/usr/local/lib/python2.6/site-packages/usb/util.py", line 191, in
> claim_interface
> device._ctx.managed_claim_interface(device, interface)
> File "/usr/local/lib/python2.6/site-packages/usb/core.py", line 112, in
> managed_claim_interface
> self.backend.claim_interface(self.handle, i)
> File "/usr/local/lib/python2.6/site-packages/usb/_debug.py", line 52, in
> do_trace
> return f(*args, **named_args)
> File "/usr/local/lib/python2.6/site-packages/usb/backend/libusb10.py",
> line 471, in claim_interface
> _check(_lib.libusb_claim_interface(dev_handle, intf))
> ArgumentError: argument 2: <type 'exceptions.TypeError'>: wrong type
>
> "self.hand" is of type <class 'usb.legacy.DeviceHandle'> (It came from a
> call to "dev.open()", where "dev" is of type <class 'usb.legacy.Device'>.)
> "self.face" is of type <class 'usb.legacy.Interface'>
>
> The wiki page that I used to use for reference (
> http://wiki.erazor-zone.de/wiki:projects:python:pyusb:pydoc) doesn't
> appear to talk about conversion or use of the new & improved pyusb...
>
> Could someone tell me where to go for conversion / interface docs? I'd like
> to do as little code conversion as possible, but I'm not sure where to
> start.
>
> Thanks
>
> -Sarah
>
>
>
> -----Inline Attachment Follows-----
>
>
>
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>
Index: usb/legacy.py
===================================================================
--- usb/legacy.py (revisão 89)
+++ usb/legacy.py (cópia de trabalho)
@@ -222,9 +222,12 @@
Arguments:
interface: interface number or an Interface object.
"""
- util.claim_interface(self.dev, interface)
- self.__claimed_interface = interface
+ if_num = interface.interfaceNumber \
+ if isinstance(interface, Interface) else interface
+ util.claim_interface(self.dev, if_num)
+ self.__claimed_interface = if_num
+
def releaseInterface(self):
r"""Release an interface previously claimed with claimInterface."""
util.release_interface(self.dev, self.__claimed_interface)
------------------------------------------------------------------------------
Free Software Download: Index, Search & Analyze Logs and other IT data in
Real-Time with Splunk. Collect, index and harness all the fast moving IT data
generated by your applications, servers and devices whether physical, virtual
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insights. http://p.sf.net/sfu/splunk-dev2dev
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