Inter-integrated circuit (I2C) device with internal bus stuck recovery

A method performed by an inter-integrated circuit (I2C) sub-device coupled to a two-wire serial communication bus including a serial data (SDA) bus line, the method comprising:

• monitoring an internal SDA signal generated at the I2C sub-device;
• determining, based at least in part on the monitoring and using a clock signal on a serial clock (SCL) line present in the two-wire serial communication bus, whether an internal SDA fault condition has occurred during which an internal SDA signal in a first signal state drives the SDA bus line to the first signal state, the internal SDA fault condition causing the I2C sub-device to be unable to communicate with a device coupled to the I2C sub-device via the two-wire serial communication bus;
• responsive to determining that no internal SDA fault condition has occurred, controlling the SDA bus line based on the internal SDA signal;
• and
• responsive to determining that the internal SDA fault condition has occurred, releasing control of the SDA bus line independent of the internal SDA signal in the first signal state, wherein the SDA bus line is in a second signal state different from the first signal state based on the release.