[Tinyos-help] I2CPacket

[Para Lee]

Hi all,

  I'm using the I2CPacket interface in a light sensor driver, but i met some
questions and i wonder if somebody could help me.

  I have written a driver use I2CPacket and it worked well. In that case the
device's write and read diagram is sample.
  But this one seems a little complex, the read and write diagram is as
follows:

  WRITE DIAGRAM: start + device address + register address + functions +
stop
                              |    -------------------SDA DRIVEN BY
MASTER--------------------- |

  READ DIAGRAM: start + device address + register address + stop + start +
device address +              data                      + stop
                             |    ------------------------SDA DRIVEN BY
MASTER---------------------------------    |   | SDA DRIVEN BY DEVICE |

  In the I2CPacket.nc, there is a description like this:
  "*The I2CPacket interface supports master-mode communication and provides
for multiple repeated STARTs and multiple reads/writes within the same START
transaction. *"

  I think this will be the key to implement the diagram above but i don't
konw how.
  Wish somebody could help me.

 regards, Lee
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