MacKENZIE, P.J.

Defendant and codefendant Clarence Walker were charged with breaking and entering an unoccupied structure with intent to commit larceny, MCL 750.110; MSA 28.305, in a complaint and warrant dated October 14, 1980. The same complaint and warrant charged defendant separately with possession of metallic knuckles, MCL 750.224; MSA 28.421. By an order dated October 14, 1980, the same counsel was appointed to represent both defendants. On October 21, 1980, both defendants waived preliminary examination and were bound over to circuit court. Supplemental informations were filed on October 27, 1980, charging defendant as a second-felony offender, MCL 769.10; MSA 28.1082, and codefendant Walker as a third-felony offender, MCL 769.11; MSA 28.1083.

On January 28, 1981, defendant pled guilty to breaking and entering an unoccupied structure with intent to commit larceny in return for the prosecutor's agreement to dismiss the habitual offender and possession of metallic knuckles charges. At the same proceeding, codefendant Walker also pled guilty to breaking and entering an unoccupied structure with intent to commit larceny in return for the prosecutor's agreement to dismiss the habitual offender charge. On March 5, 1981, defendant was sentenced to imprisonment for from two years and three months to ten years. Codefendant Walker received an identical sentence. Defendant appeals by right.

The only issue raised by defendant on appeal concerns his representation by the same counsel that represented codefendant Walker. In Cuyler v Sullivan, 446 U.S. 335, 348-350; 100 S Ct 1708; 64 L Ed 2d 333 (1980), the Court said:

"In order to establish a violation of the Sixth Amendment, a defendant who raised no objection at trial must demonstrate that an actual conflict of interest adversely affected his lawyer's performance.

* * *

"[A] defendant who shows that a conflict of interest actually affected the adequacy of his representation need not demonstrate prejudice in order to obtain relief. * * * But until a defendant shows that his counsel actively represented conflicting interests, he has not established the constitutional predicate for his claim of ineffective assistance."

Defendant made no objection in the course of the proceedings below and on appeal points to no conflict of interest actually affecting the adequacy of his representation. Our examination of the record discloses no such conflict or effect. Instead, defendant relies upon the failure of the circuit judge to comply with GCR 1963, 785.4(4). That rule, adopted November 18, 1980, effective November 21, 1980, stated:

"(4) Whenever two or more defendants who have been jointly charged or whose cases have been consolidated are represented by the same lawyer, the court shall inquire into any potential conflict which might jeopardize the right of each defendant to the fidelity of his or her lawyer. The same lawyer may not represent two or more defendants unless

"(a) the lawyer proposing to represent two or more defendants states, on the record before trial, that joint representation will in all probability not cause a conflict of interest and states the reasons for the conclusion; and

"(b) the defendants state, on the record, after the court's inquiry and the lawyer's statement, that it is their desire to proceed with the same lawyer; and

"(c) the court finds, on the record, that joint representation will in all probability not cause a conflict of interest and states the reasons for the finding.

"If an unanticipated conflict occurs during trial, a lawyer who is representing two or more defendants shall immediately inform the court; if the court agrees that a conflict has arisen, it shall appoint an additional lawyer or lawyers or afford one or more of the defendants the opportunity to retain separate counsel, as the case may require. The court may, on its own motion, inquire into any potential conflict which becomes apparent during trial, and the court may take such action as the interests of justice require."

Here, no attempt was made to comply with the rule. The rule took effect after defendant was bound over to circuit court on the charges at issue here but before defendant pled guilty. The court's obligation under the rule is not tied to any particular stage of the proceedings and the prosecution concedes that the rule could and should have been complied with. The circuit court's failure to comply with the rule, however, did not, of itself, violate defendant's right to counsel. See Cuyler, supra, 346-347:

"[N]othing in our precedents suggests that the Sixth Amendment requires state courts themselves to initiate inquiries into the propriety of multiple representation in every case. Defense counsel have an ethical obligation to avoid conflicting representations and to advise the court promptly when a conflict of interest arises during the course of trial. Absent special circumstances, therefore, trial courts may assume either that multiple representation entails no conflict or that the lawyer and his clients knowingly accept such risk of conflict as may exist. Indeed, as the Court noted in Holloway [v Arkansas, 435 U.S. 475, 485-486; 98 S Ct 1173; 55 L Ed 2d 426 (1978)], trial courts necessarily rely in large measure upon the good faith and good judgment of defense counsel. `An "attorney representing two defendants in a criminal matter is in the best position professionally and ethically to determine when a conflict of interest exists or will probably develop in the course of a trial.'" 435 US at 485, quoting State v Davis, 110 Ariz. 29, 31; 514 P.2d 1025, 1027 (1973). Unless the trial court knows or reasonably should know that a particular conflict exists, the court need not initiate an inquiry." (Footnotes omitted.)

This case, therefore, presents us with a question of first impression: whether failure to comply with GCR 1963, 785.4(4) requires reversal where defendant's right to counsel was not shown to have been infringed. We hold that it does not.

The stated purpose of the rule was to protect the rights of defendants to the effective assistance of counsel in a joint representation situation. People v Gardner, 406 Mich. 369, 373; 279 N.W.2d 785 (1979). Effectuation of that purpose does not necessarily require reversal in a case in which there was no showing of a conflict of interest actually affecting the adequacy of representation. The rule does not expressly state that failure to comply is reversible error. Reversal is not always required for violations of similar rules. See, for example, Guilty Plea Cases, 395 Mich. 96, 113; 235 N.W.2d 132 (1975), in which the Court held that whether a particular departure from GCR 1963, 785.7 requires reversal depends on the nature of the noncompliance. The rule is not rendered a nullity if reversal is not required for noncompliance; the rule may still be enforced through writs of superintending control. People v Winegar, 380 Mich. 719, 731; 158 N.W.2d 395 (1968). We note that in the pre- Cuyler case of United States v Foster, 469 F.2d 1, 5 (CA 1, 1972), the circuit court exercised its supervisory powers to require trial courts to inquire into the propriety of multiple representation but declined to adopt a rule of automatic reversal.

In view of the foregoing, we cannot say that GCR 1963, 785.4(4) expresses an intent of our Supreme Court to require reversal for noncompliance with the rule absent a showing of conflict of interest actually affecting the adequacy of representation.

Affirmed.