I2C slave library : Restart sequence when a register address writes is done before reading

Hi,

Using Wire for I2C slave implementation one can see that when a master is using the classical register Write adress followed by a restart and a write sequence, we cannot get back the writen adress !

In
void TwoWire::onService(void)

if (_p_twis->EVENTS_READ)

if the amount of receive data is copied into the rx RingBuffer header it will be available for the end user to get back theise data in it's read event handler

**rxBuffer._iHead = _p_twis->RXD.AMOUNT;**

I don't see any side effect of this small addition.

Bye.

Locate void TwoWire::onService() and inspect the EVENTS_READ path, especially rxBuffer._iHead and _p_twis->RXD.AMOUNT. Reproduce the I2C slave register-address-then-restart sequence and verify that the written register address is available to the end user in the read event handler.

Written by the indexing model from the issue text.