I have a home-built interface which uses i2c and recently stopped working. i2cdetect says
Error: Could not open file `/dev/i2c-1' or `/dev/i2c/1': No such file or directory
I tried another i2c peripheral (XLoBorg), and i2cdetect gives the same error with that plugged in instead. This is on both my Pis and also with the SDCards swapped, and is possibly following an apg-get update, upgrade
It's got to be a simple problem but it escapes me for the moment. Any ideas?
Regards - Philip