@brief Read the GPIO line bias setting. @param line GPIO line object. @return Returns GPIOD_LINE_BIAS_PULL_UP, GPIOD_LINE_BIAS_PULL_DOWN, GPIOD_LINE_BIAS_DISABLE or GPIOD_LINE_BIAS_AS_IS.
See Implementation
@brief Read the GPIO line bias setting. @param line GPIO line object. @return Returns GPIOD_LINE_BIAS_PULL_UP, GPIOD_LINE_BIAS_PULL_DOWN, GPIOD_LINE_BIAS_DISABLE or GPIOD_LINE_BIAS_AS_IS.