In the default Debian imagine, can any I2C bus be used from the P9 expansion header, without rebuilding the kernel? If so, which pins? (19 & 20, or 17 & 18?)
When I run i2cdetect, I have two I2C buses, but I’m not sure which buses they map to on the BBB:
i2c-0 i2c OMAP I2C adapter I2C adapter
i2c-1 i2c OMAP I2C adapter I2C adapter
Assuming I have a working I2C slave device, if I wire SDA to P9_20, SCL to P9_19, 3.3V power to P9_3, GND to P9_1, would one expect the device to show up on the i2c bus (the breakout board already has a pull-up resistor)?