Damien George 5bb28c7f10 extmod/machine_spi: Simplify SPI xfer function to only take one buf len. ...

There is no need to take src_len and dest_len arguments.  The case of
reading-only with a single output byte (originally src_len=1, dest_len>1)
is now handled by using the output buffer as the input buffer, and using
memset to fill the output byte into this buffer.  This simplifies the
implementations of the spi_transfer protocol function.

2016-10-03 12:39:31 +11:00

3.3 KiB

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