Its good that the I2C busses are now using the same number for each bus
in hardware and software.
But I am seeing something weird with the I2C1 bus.
If i use i2cdetect on bus 0 and 2 the bus scan is very fast and i see
the things i expect from past scans on
older linux versions.
But if i scan I2C1 (i2cdetect -r 1) I can almost go get a cup of coffee
while it scans the bus.
I also do not see anything i would expect out there that i have added to
It behaves the same way ( on a BBG ) whether the board is plugged in to
my board or not plugged into anything.
I was wondering if there might be a reason why the different busses
behave so different.
I have a RTC as well as a cape eeprom on I2C2 and they are all
Just that pesky I2C1 bus.
image used is latest from