... > I'm using block read in order to get multiple registers at a time > (around 76 bytes) and to increase the efficiency of the transfer over > I2C. Being a block read there are different registers length involved > from 16 up to 56 bits long and I need to unpack. You could do an unaligned 64bit BE read and then shift the value right 8 bits (and only advance the pointer 7 bytes). Safe because you can guarantee a spare byte at the end of the data. On x86-64 you could do that for all sizes! David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)
