Greetings Friends, I am looking for a way to perform combined transactions over I2C in Linux. The structure of the message I need to send is as follows. The slave responds in the brackets. START Slave Address, Write [ACK] Data [ACK] Data [ACK] ... FEND START Slave Address, Write [Data] ACK [Data] ACK ... [FEND] ACK STOP Here, FEND is a special end of message byte defined in a manner similar to the SLIP encapsulation. It does not appear that I can use the i2c_smbus_block_process_call because it requires the first data byte to be the message length. Is there any way to send these sorts of combined transaction in Linux without using the smbus interface? Best, Henri Kjellberg UT-Austin Satellite Design Laboratory -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html