DCMD_I2C_DRIVER

#include <hw/i2c.h>

#define DCMD_I2C_DRIVER_INFO        __DIOF (_DCMD_I2C, 10, i2c_driver_info_t)

The arguments to devctl() are:

Argument	Value
`filedes`	A file descriptor that you obtained by opening the device.
`dcmd`	DCMD_I2C_DRIVER_INFO
`dev_data_ptr`	A pointer to a i2c_driver_info_t
`n_bytes`	`sizeof(i2c_driver_info_t)`
`dev_info_ptr`	NULL

The DCMD_I2C_DRIVER_INFO command returns information about the hardware library.

Input: None.
Output: An i2c_driver_info_t structure that contains driver information; see the description of the driver_info function, earlier in this technote.

If an error occurs, the command returns: