driver_info function

The driver_info function returns information about the driver. The prototype for this function is:

int driver_info(
      void *hdl,
      i2c_driver_info_t *info );

The arguments are:

hdl

The handle returned by the init function.

info

A pointer to a i2c_driver_info_t structure where the function should store the information:

typedef struct {
    uint32_t    speed_mode;
    uint32_t    addr_mode;
    uint32_t    reserved[2];
} i2c_driver_info_t;
  

For the speed_mode member, OR together the appropriate values from the following list to indicate the supported speeds:

I2C_SPEED_STANDARD

Up to 100 Kbit/s.

I2C_SPEED_FAST

Up to 400 Kbit/s.

I2C_SPEED_HIGH

Up to 3.4 Mbit/s.

Set the addr_mode to one of the following to indicate the supported address format:

• I2C_ADDRFMT_7BIT
• I2C_ADDRFMT_10BIT

The function must return:

0

Success.

-1

Failure.