Damien George 6bda80d811 esp32/machine_i2c: Implement write-then-read I2C transfers.
I2C transfers are much more efficient if they are combined, instead of
doing separate writes and reads.

Fixes issue #7134.

Signed-off-by: Damien George <damien@micropython.org>
2022-06-01 13:20:30 +10:00
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