buffer length i2c

i use a FXOS8700CQ 6-Axis Sensor on Arduino Due.
The Sensor sends 38Byte, but i can only receive 32.

How can I change the buffer length?

At the UNO I have changed the buffer length in wire.h and twi.h, but i could not find any thing like that in the DUE libary.

Thanks for help

Look in \Arduino\hardware\arduino\sam\libraries\Wire\Wire.h

Can't you request 32 bytes and empty that buffer without dropping the connection and then request the next 6 bytes?

Can you share the code for getting sensor value s in I2c please