2011/1/18 Sridev Nair <sksridevn...@gmail.com>: > Spied on the USB bus, I see that reader.open() does not actually open the > port though it seem to pass a handle object to readerHandler . There are no > messages passed and no activity on the bus. > On debugging the code, I see that reader.open() just returns DeviceHandle > object without any call to open the port. Is this intended? > Yes, it is expected behavior. PyUSB 0.4 API emulation is built over standard API, which has no explicit open (it is managed internally). This open only exist for backward compatibility.
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