Add default value to `p_data_in` in `inert_spi::transfer`

libhal-google / libhal-soft

Library for generic soft drivers officially supported by libhal

Apache License 2.0

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Add default value to `p_data_in` in `inert_spi::transfer` #26

Open MaliaLabor opened 1 year ago

MaliaLabor commented 1 year ago

p_data_in is an out parameter meaning that users will look at this buffer after the function is called. It would be good to have a default value for what should be returned/written into the buffer