SPI and I2C, was Re: Raspberry Pi and America,

Once upon a time, all the world was a VAX running 4.x. Then Sun happened, and lots of code that "worked everywhere" broke. Later, all the world was a 386/486/Pentium, SPARC, PowerPC, etc. Then amd64 and sparc64 happened and lots of code that "worked everywhere" broke. Write to what the language promises, not what happens to be popular today. Those who have to maintain your code in the future will thank you. Or don't. Those who fix it in the future will thank you for their job security. Or, of course, you could just not even pretend to write portably. Sometimes that's a right answer; for example, when writing a driver for an SBus device, I have no problem assuming I'm on a SPARC. /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML mouse at rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B