Function gx_gpio_i2c_init

int gx_gpio_i2c_init(unsigned char bus_id, unsigned int scl_port, unsigned int sda_port)

初始化gpio i2c master

参数

  • bus_id -- i2c总线id

  • scl_port -- scl线对应的gpio

  • sda_port -- sda线对应的gpio

Returns 0

成功

Returns -1

失败