OCI2C_CMD
oc_setreg(i2c, OCI2C_CMD, OCI2C_CMD_IACK);
oc_setreg(i2c, OCI2C_CMD, OCI2C_CMD_STOP);
oc_setreg(i2c, OCI2C_CMD, OCI2C_CMD_STOP);
oc_setreg(i2c, OCI2C_CMD, OCI2C_CMD_START);
oc_setreg(i2c, OCI2C_CMD, OCI2C_CMD_STOP);
oc_setreg(i2c, OCI2C_CMD, i2c->pos == (msg->len-1) ?
oc_setreg(i2c, OCI2C_CMD, OCI2C_CMD_WRITE);
oc_setreg(i2c, OCI2C_CMD, OCI2C_CMD_STOP);
oc_setreg(i2c, OCI2C_CMD, OCI2C_CMD_START);
oc_setreg(i2c, OCI2C_CMD, OCI2C_CMD_IACK);