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General informations

The Linux kernel configuration item CONFIG_ETRAX_DEF_R_PORT_PB_DIR:

Help text

Configures the direction of general port B bits. 1 is out, 0 is in. This is often totally different depending on the product used. Bits 0 and 1 on port PB are usually used for I2C communication, but the kernel I2C driver sets the appropriate directions itself so you don't need to take that into consideration when setting this option. If you don't know what to use, it is always safe to put all as inputs.



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