Function gx_i2c_rx

---

int gx_i2c_rx(unsigned char bus_id, unsigned char slv_addr, unsigned int reg_address, unsigned char address_width, unsigned char *rx_data, unsigned short len)

i2c读取数据

参数

• bus_id -- i2c总线id

• slv_addr -- i2c slave地址

• reg_address -- i2c slave寄存器地址

• address_width -- i2c slave寄存器地址宽度

• rx_data -- 读取的数据

• len -- 读取数据长度

Returns 0

成功

Returns -1

失败