Hardware Reference
In-Depth Information
Additionally, you will need to go into the I2C Support submenu, and enable compiled-
in support for the “I2C device interface” ( CONFIG_I2C_CHARDEV ) and “Autoselect perti-
nent helper modules” ( CONFIG_I2C_HELPER_AUTO ). Figure 2-10 shows the menu with
these options properly enabled.
Figure 2-10.
I2C support options properly enabled
Then, in the “I2C Hardware Bus support” submenu, enable the BCM2708 BSC ( CON
FIG_I2C_BCM2708 ) driver (again, as compiled-in, not as a module). This is the hardware
driver for the Raspberry Pi's I2C bus controller. The BCM2708 I2C baud rate defaults
to 100000, and that is fine. It should look like Figure 2-11 .
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