DCMD_I2C_MASTER_RECV (deprecated)

The DCMD_I2C_MASTER_RECV command executes a master receive transaction, using the slave device address and bus speed specified for the current connection.

Input

i2c_messagehdr_t — the message header

Output

uint8_t[] — the receive data

Note:

The message header is overwritten.

If an error occurs, the command returns:

EIO

The master receive failed. Causes include: bad slave address, bad bus speed, bus is busy.

EINVAL

Bad message format.

ENOMEM

Insufficient memory.

EPERM

The master is locked by another connection.