Hello,
I'm playing around with pyUSB on a macbook pro, in order to be able to play
around with the IR port.
I've got the device found using this:
dev = usb.core.find(idVendor=0x05ac, idProduct=0x8242)
if dev is None:
raise ValueError('Device not found')
now, if I try the
dev.set_configuration()
(the device has only one configuration)
I get the following error:
>>> dev.set_configuration(1)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/usb/core.py",
line 530, in set_configuration
self._ctx.managed_set_configuration(self, configuration)
File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/usb/core.py",
line 92, in managed_set_configuration
self.backend.set_configuration(self.handle, cfg.bConfigurationValue)
File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/usb/_debug.py",
line 52, in do_trace
return f(*args, **named_args)
File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/usb/backend/libusb10.py",
line 455, in set_configuration
_check(_lib.libusb_set_configuration(dev_handle, config_value))
File
"/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/usb/backend/libusb10.py",
line 357, in _check
raise USBError(_str_error[retval.value])
usb.core.USBError: Unknown error
Unless I click on any of the buttons on the remote control (thus I suppose
activating the device).
then the set_configuration works perfectly.
Is there a way to get around this? ( and not just probe until the control
has been clicked).
thank you
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