While capturing some basic waveforms on the Raspberry PI SPI interface, it appears that both the SPI xfer and xfer2 commands work the same way. xfer is supposed to drop the SPI chip enable for each byte, but it does not. If there is a trick to accomplish this function, please leave a reply and let me know how to make xfer work as expected.

Just getting this website started. I want to publish information that I myself was looking for, but did not find on the web. So I may leave out some details which you should be able to Google and find explained elsewhere. So for instance enabling the i2c interface on the Raspberry PI is covered by a number of websites. Have fun and happy experimenting.