i2c: support writes with a list of buffers (v2)#4763

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dpgeorge wants to merge 10 commits intomicropython:masterfrom

dpgeorge:extmod-i2c-partial-transactions-v2

Commits on May 8, 2019

extmod/machine_i2c: Change C-level API to allow split I2C transactions.
dpgeorge
committed
stm32/machine_i2c: Update to support new C-level I2C API.
dpgeorge
committed
nrf/machine/i2c: Update to support new C-level I2C API.
dpgeorge
committed
zephyr/machine_i2c: Update to support new C-level I2C API.
dpgeorge
committed
extmod/machine_i2c: Remove need for temporary memory in writemem() call.
dpgeorge
committed
extmod/machine_i2c: Add i2c.writevto() that can write a vector of bufs.
dpgeorge
committed
drivers/display/ssd1306.py: Change to use new i2c.writevto() method.
dpgeorge
committed

Commits on May 9, 2019