I2C read and write

[yoLo_]

There is this i2c memory operations...
http://docs.micropython.org/en/latest/p ... adfrom_mem

I2C.readfrom_mem_into(addr, memaddr, buf, *, addrsize=8)

after the buf, there is this parameter with *
what goes there ???
and if addrsize = 8 then by inserting a value in the parameter change the size of length of the data read ??
also is there anyway i can read from memory and know if read has been successful..
like return a 1 if successful or 0 if not ??
because i got try: ..... except in mind but what if buf is empty after readinto buf has been performed

any examples ??

Regards

[pythoncoder]

The * signifies that subsequent arguments must be supplied as keyword args. See https://stackoverflow.com/questions/222 ... -parameter.