From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=134.134.136.31; helo=mga06.intel.com; envelope-from=michael.d.kinney@intel.com; receiver=edk2-devel@lists.01.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id A091E21173C7A for ; Tue, 23 Oct 2018 16:12:04 -0700 (PDT) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Oct 2018 16:12:03 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,418,1534834800"; d="scan'208";a="97976247" Received: from orsmsx107.amr.corp.intel.com ([10.22.240.5]) by fmsmga002.fm.intel.com with ESMTP; 23 Oct 2018 16:12:03 -0700 Received: from orsmsx162.amr.corp.intel.com (10.22.240.85) by ORSMSX107.amr.corp.intel.com (10.22.240.5) with Microsoft SMTP Server (TLS) id 14.3.319.2; Tue, 23 Oct 2018 16:12:02 -0700 Received: from orsmsx113.amr.corp.intel.com ([169.254.9.89]) by ORSMSX162.amr.corp.intel.com ([169.254.3.24]) with mapi id 14.03.0319.002; Tue, 23 Oct 2018 16:12:03 -0700 From: "Kinney, Michael D" To: TVKR , "edk2-devel@lists.01.org" Thread-Topic: [edk2] OpenProtocolInformation Thread-Index: AQHUayUXCDnsLAW8mkyx72iJWJl+y6UtdMzg Date: Tue, 23 Oct 2018 23:12:02 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-version: 11.0.400.15 dlp-reaction: no-action x-originating-ip: [10.22.254.139] MIME-Version: 1.0 Subject: Re: OpenProtocolInformation X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Oct 2018 23:12:04 -0000 Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable The same protocol can be installed on many handles in the handle database. For example, if there are multiple mass storage devices in a platform, there will be multiple Block I/O Protocols in the handle database. Mike > -----Original Message----- > From: edk2-devel [mailto:edk2-devel- > bounces@lists.01.org] On Behalf Of TVKR > Sent: Tuesday, October 23, 2018 4:06 PM > To: edk2-devel@lists.01.org > Subject: [edk2] OpenProtocolInformation >=20 > Hi, >=20 > If the main purpose of the OpenProtocolInformation > service is to provide > the complete list of agents currently using a specific > protocol interface > then what is the need for providing the Handle argument > too as an input? > Why does it matter what Handle was this queried protocol > installed on? >=20 > Thanks > _______________________________________________ > edk2-devel mailing list > edk2-devel@lists.01.org > https://lists.01.org/mailman/listinfo/edk2-devel