Hi Jean, The i2c.h file has defined some constants for SMBus block process calls, e.g. I2C_FUNC_SMBUS_BLOCK_PROC_CALL I2C_FUNC_SMBUS_BLOCK_PROC_CALL_PEC I2C_SMBUS_BLOCK_PROC_CALL I2C_SMBUS_BLOCK_PROC_CALL_PEC Does the i2c-i801 module in Kernel 2.6 support the block process calls? If no, is there new patch which supports it? Thanks MK ----------------------------------------- This email may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, retention, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. Also, email is susceptible to data corruption, interception, tampering, unauthorized amendment and viruses. We only send and receive emails on the basis that we are not liable for any such corruption, interception, tampering, amendment or viruses or any consequence thereof.