I2C preamble question

If i want to send byte address rather than word address ,  Does  the following change of the sample code work well, If I change the sdk code as followings?

Sample Code in SDK,

           preamble.length    = 4;
            preamble.buffer[0] = devAddr;
            preamble.buffer[1] = (uint8_t)(byteAddress >> 8);
            preamble.buffer[2] = (uint8_t)(byteAddress & 0xFF);
            preamble.buffer[3] = (devAddr | 0x01);
            preamble.ctrlMask  = 0x0004;
 

To

         preamble.length    = 3;
            preamble.buffer[0] = devAddr;
            preamble.buffer[1] = regAddress;  //My new 8 bit address
            preamble.buffer[2] = (devAddr | 0x01);
            preamble.ctrlMask  = 0x0004;
 

Thanks for help