From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mga03.intel.com ([134.134.136.65]:28192 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731655AbeKVTiV (ORCPT ); Thu, 22 Nov 2018 14:38:21 -0500 From: "Zhang, Ning A" To: "tfiga@chromium.org" CC: "Zhang, Ning A" , "linux-media@vger.kernel.org" Subject: Re: is it possible to use single IOCTL to setup media pipeline? Date: Thu, 22 Nov 2018 08:59:44 +0000 Message-ID: <1542877183.1288.34.camel@intel.com> References: <1542855107.1288.32.camel@intel.com> In-Reply-To: Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-ID: <0B2D429D1B69614CBE7AAB985C511EAE@intel.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org List-ID: VG9tYXN6LCBUaGFuayB5b3UgZm9yIHlvdXIgYW5zd2Vycy4NCg0KbGVhcm5lZCBhIGxvdC4NCg0K QlIuDQpOaW5nLg0KDQrlnKggMjAxOC0xMS0yMuWbm+eahCAxNjowNiArMDkwMO+8jFRvbWFzeiBG aWdh5YaZ6YGT77yaDQo+IEhpIE5pbmcsDQo+IA0KPiBPbiBUaHUsIE5vdiAyMiwgMjAxOCBhdCAx MTo1MiBBTSBaaGFuZywgTmluZyBBIDxuaW5nLmEuemhhbmdAaW50ZWwuY28NCj4gbT4gd3JvdGU6 DQo+ID4gDQo+ID4gSGVsbG8gZXZlcnlvbmUNCj4gPiANCj4gPiB3aGVuIHdlIG5lZWQgdG8gc2V0 dXAgbWVkaWEgcGlwZWxpbmUsIGVnLCBmb3IgY2FtZXJhIGNhcHR1cmUsDQo+ID4gbWVkaWEtY3Rs DQo+ID4gbmVlZHMgdG8gYmUgY2FsbGVkIG11bHRpcGxlIHRpbWUgdG8gc2V0dXAgbWVkaWEgbGlu ayBhbmQgc3ViZGV2DQo+ID4gZm9ybWF0cywgb3Igc2ltaWxhciBjb2RlIGluIGEgc2luZ2xlIGFw cGxpY2F0aW9uLiB0aGlzIHdpbGwgdXNlDQo+ID4gbXVsdGlwbGUgSU9DVExzIG9uICIvZGV2L21l ZGlhWCIgYW5kICIvZGV2L3Y0bDItc3ViZGV2WSIuDQo+ID4gDQo+ID4gdG8gc2V0dXAgbWVkaWEg cGlwZWxpbmUgaW4gdXNlcnNwYWNlIHJlcXVpcmVzIHRvIGZ1bGx5DQo+ID4gdW5kZXJzdGFuZGlu Zw0KPiA+IHRoZSB0b3BvbG9neSBvZiB0aGUgbWVkaWEgc3RhY2suIGJ1dCB0aGUgZmFjdCBpcyBv bmx5IG1lZGlhIGRyaXZlcg0KPiA+IGRldmVsb3BlciBjb3VsZCBrbm93IGhvdyB0byBzZXR1cCBt ZWRpYSBwaXBlbGluZS4gZWFjaCB0aW1lIGRyaXZlcg0KPiA+IHVwZGF0ZXMsIHRoaXMgd291bGQg YnJlYWsgdXNlcnNwYWNlIGFwcGxpY2F0aW9uIGlmIGFwcGxpY2F0aW9uDQo+ID4gZW5naW5lZXJz IGRvbid0IGtub3cgdGhpcyBjaGFuZ2UuDQo+IA0KPiBUaGF0J3Mgb2J2aW91c2x5IGEgYnVnIGlu IHRoZSBkcml2ZXIuIEtlcm5lbCBpbnRlcmZhY2VzIG11c3Qgbm90DQo+IGNoYW5nZSBpbiBhIHdh eSB0aGF0IGFyZSBub3QgY29tcGF0aWJsZSB3aXRoIHRoZSB1c2Vyc3BhY2UuDQoNCkkgbWV0IHRo aXMgaXNzdWUgOigNCg0KPiANCj4gPiBJbiB0aGlzIGNhc2UsIGlmIGEgSU9DVEwgaXMgZGVzaWdu ZWQNCj4gPiB0byBzZXR1cCBtZWRpYSBwaXBlbGluZSwgbm8gbmVlZCB0byB1cGRhdGUgYXBwbGlj YXRpb25zLCBhZnRlcg0KPiA+IGRyaXZlcg0KPiA+IGlzIHVwZGF0ZWQuDQo+ID4gDQo+ID4gdGhp cyB3aWxsIG5vdCBvbmx5IGJlbmVmaXQgZm9yIGRlc2lnbiBhIHNpbmdsZSBJT0NUTCwgdGhpcyBh bHNvDQo+ID4gaGVscHMNCj4gPiB0byBoaWRlIHRoZSBkZXRhaWwgb2YgbWVkaWEgcGlwZWxpbmUs IGJ5IGxvYWQgYSBiaW5hcnkgYmxvYiB3aGljaA0KPiA+IGhvbGRzDQo+ID4gaW5mb3JtYXRpb24g YWJvdXQgaG93IHRvIHNldHVwIHBpcGVsaW5lLCBvciBoaWRlIGl0IGluDQo+ID4gYm9vdGxvYWRl ci9BQ1BJDQo+ID4gdGFibGVzL2RldmljZSB0cmVlLCBldGMuDQo+IA0KPiBNZWRpYSBwaXBlbGlu ZSBjb25maWd1cmF0aW9uIGlzIHNwZWNpZmljIHRvIHRoZSB1c2UgY2FzZS4gSWYgeW91DQo+IGhh cmRjb2RlIGl0IGluIHRoZSBkcml2ZXIgb3IgYm9vdGxvYWRlciwgdGhlIHVzZXIgd2lsbCBub3Qg YmUgYWJsZSB0bw0KPiB1c2UgYW55IG90aGVyIHVzZSBjYXNlIHRoYW4gdGhlIGhhcmRjb2RlZCBi bG9iLCB3aGljaCBpcyB1bmFjY2VwdGFibGUNCj4gZm9yIExpbnV4IGRyaXZlcnMuDQo+IA0KPiBJ bnN0ZWFkLCBpdCBzb3VuZHMgbGlrZSB5b3VyIHVzZXJzcGFjZSBzaG91bGQgYmUgZGVzaWduZWQg aW4gYSB3YXkNCj4gdGhhdCB0aGUgbWVkaWEgdG9wb2xvZ3kgY29uZmlndXJhdGlvbiBpcyBsb2Fk ZWQgZnJvbSBhIGNvbmZpZ3VyYXRpb24NCj4gZmlsZSB0aGF0IHlvdSBjb3VsZCBlaXRoZXIgZ2V0 IGZyb20geW91ciBrZXJuZWwgZHJpdmVyIGRldmVsb3BlciBvcg0KPiBqdXN0IG1haW50YWluIHlv dXJzZWxmIGJhc2VkIG9uIGFueSBjaGFuZ2VzIHRoZSBtZWRpYSBkZXZlbG9wZXJzIGRvLg0KPiBP ZiBjb3Vyc2UgdGhhdCdzIHVucmVsYXRlZCB0byB0aGUgYmFja3dhcmRzIGNvbXBhdGliaWxpdHkg aXNzdWUsDQo+IHdoaWNoDQo+IHNob3VsZCBub3QgaGFwcGVuIG5vcm1hbGx5LiBUaGUgY29uZmln dXJhdGlvbiBmaWxlIHdvdWxkIGJlIGhlbHBmdWwNCj4gZm9yIGhhbmRsaW5nIGZ1dHVyZSBleHRl bnNpb25zIGFuZCBuZXcgaGFyZHdhcmUgcGxhdGZvcm1zLg0KDQp5ZXMsIGlmIHRoZXJlIGFyZSBt dWx0aXBsZSB1c2VyIGNhc2VzLCB0aGVuIHRoaXMgaXMgbm90IG9wdGlvbmFsLg0KDQo+IA0KPiA+ IA0KPiA+IGFub3RoZXIgYmVuZWZpdCBpcyBzYXZlIHRpbWUgZm9yIHNldHVwIG1lZGlhIHBpcGVs aW5lLCBpZiB0aGVyZSBpcw0KPiA+IGENCj4gPiBQS0kgbGlrZSAidGltZSBmb3Igb3BlbiBjYW1l cmEiLiBhcyBteSB0ZXN0LCB0aGlzIHdpbGwgc2F2ZXMNCj4gPiBodW5kcmVkcw0KPiA+IG9mIG1p bGxpc2Vjb25kcy4NCj4gDQo+IEZvciB0aGlzIHByb2JsZW0sIHRoZSBwcm9wZXIgc29sdXRpb24g d291bGQgYmUgdG8gY3JlYXRlIGFuIGlvY3RsDQo+IHRoYXQNCj4gY2FuIGFnZ3JlZ2F0ZSBzZXR0 aW5nIG11bHRpcGxlIHBhcnRzIG9mIHRoZSB0b3BvbG9neSBpbiBvbmUgZ28uIEZvcg0KPiBleGFt cGxlLCBWNEwyIGhhcyBWSURJT0NfU19DVFJMIGZvciBzZXR0aW5nIGEgY29udHJvbCwgYnV0IHRo ZXJlIGlzDQo+IGFsc28gVklESU9DX1NfRVhUX0NUUkxTLCB3aGljaCBsZXRzIHlvdSBzZXQgbXVs dGlwbGUgY29udHJvbHMgaW4gb25lDQo+IGNhbGwuIFNvbWV0aGluZyBsaWtlIFZJRElPQ19TX0VY VF9DVFJMUyBmb3IgY29uZmlndXJpbmcgdGhlIG1lZGlhDQo+IHRvcG9sb2d5IHdvdWxkIHNvbHZl IHRoZSBwZXJmb3JtYW5jZSBwcm9ibGVtLg0KDQp0aGlzIG1heSBiZSBhbHRlcm5hdGl2ZSBjaG9p Y2UuDQoNCj4gDQo+IA0KPiBCZXN0IHJlZ2FyZHMsDQo+IFRvbWFzeg==