Ask questionsUsbClass::poll not always called on UsbDevice::poll
Contrary to what is documented on
UsbClass::poll ("Called whenever the
UsbDevice is polled."), it is only called by
Is that working as intended with the documentation being wrong or does the documentation need to be updated?
Answer questions TimNN
Maybe to provide a bit of context: I've been working USB Serial Logger implementation. The logs are initially written to an internal buffer. Whenever
endpoint_in_complete is called, the buffer is checked and if logs are present they are written.
The issue is, of course, when there are no logs to be written. In that case
endpoint_in_complete will never be called again. Based on the documentation, I implemented
poll so that it would periodically also check the buffer and trigger an initial write if necessary. I few hours of debugging later, I noticed that my
poll method wasn't actually called 😑.
Related questionsNo questions were found.