The UART service needs a way to handle asynchronous notifications to the host (as in, support a service getting the host's attention outside of the typical request -> response flow).
This will likely be handled in-band (through some sentinel value) so as to not need additional wires, but could be challenging since binary data (not just ASCII) is transferred between host and EC.
The UART service needs a way to handle asynchronous notifications to the host (as in, support a service getting the host's attention outside of the typical request -> response flow).
This will likely be handled in-band (through some sentinel value) so as to not need additional wires, but could be challenging since binary data (not just ASCII) is transferred between host and EC.