If the number of endpoints is not sufficient for an application, it should not be silently ignored and cause a non-working application. Rather, should cause an assertion as it is a configuration issue.
This truncates the incomming frames to ETHERNET_FRAME_LEN and silently
discards the rest of the frame until the end of the frame. This should
be modified to an endpoint halt condition after #17090 is merged, but
for now this should be good enough.
Stalling the endpoint with the current stall implementation could cause
a ping of death scenario, so for now the data is truncated until the
above solution can be implemented.
The OUT endpoint of the cdc ecm data endpoint is only expected to
receive data when the alternative interface is activated. Signalling
ready in the init function can cause issues as the endpoints are not yet
enabled in the low level USB peripheral driver.
This commit changes the name of the requests over the control endpoints
to control requests instead of setup requests. This is a terminology fix
to follow the USB specification more closely as technically only the
first stage of a control request is named setup which contains a setup
packet. The whole transfer is a control transfer.
