I2CEEBlockDevice cannot read more than one page at a time in some circumstances.

[multiplemonomials]

This issue manifests in the following situation:

• You have an EEPROM device that is larger than 256 bytes, but does not use 16-bit addressing (so the upper three bits of the read address are sent through the I2C address byte)
• You try to read across a page boundary (e.g. read addresses 0-511, or address 255-256)

In order to do this type of read, the current I2C transaction needs to be ended, and a new one needs to be started for the desired page. Strangely, the program() method has logic to do this, but the read() method does not. This means that doing a read that crosses page boundaries will just end up looping back to the start of the first page instead of returning correct data.

[multiplemonomials]

Looks like it actually used to have this code and then it was removed??
440fa49

[multiplemonomials]

Actually hmm.... that PR correctly calls out that the datasheets these EEPROMs, including mine, say that you can in fact do a sequential read of the entire memory. So the code currently in Mbed looks correct. So... why did the test fail??