A problem occurs when using catkin_make

[ZHOUZHIHAO456]

When compiling, the i2c_smbus_read_byte_data and i2c_smbus_write_byte_data sub-functions in ros-i2cpwmboard/src/i2cpwm_controller.cpp are not defined. Where is the definition of these two sub-functions?

[bianglibeyond]

Please join our group, I remember we have encountered this issue and got it solved. You are likely to get an quick answer if you ask group members.