Jeff Epler 2b64318a57 Update all implementations of common_hal_busio_spi_read to honor write_value
(nrf, rp2040, and cxd56)

.. as well as a misleading comment that said that read always output
zeros.

Closes: #3447
2021-08-18 10:20:40 -05:00
..
2021-06-26 01:50:28 -07:00
2021-03-15 19:27:36 +05:30
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2021-08-11 11:53:26 -07:00
2021-03-15 19:27:36 +05:30