Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754212AbbDHLYK (ORCPT ); Wed, 8 Apr 2015 07:24:10 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:54217 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754175AbbDHLYD (ORCPT ); Wed, 8 Apr 2015 07:24:03 -0400 Message-ID: In-Reply-To: <1427272878.25161.4.camel@neukum.org> References: <1427266399-19124-1-git-send-email-rtatiya@codeaurora.org> <1427272878.25161.4.camel@neukum.org> Date: Wed, 8 Apr 2015 11:24:00 -0000 Subject: Re: [PATCH] usb: Enable LPM for USB 2.01+ full-speed devices From: rtatiya@codeaurora.org To: "Oliver Neukum" Cc: rtatiya@codeaurora.org, sarah.a.sharp@linux.intel.com, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org User-Agent: SquirrelMail/1.4.22-4.el6 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Priority: 3 (Normal) Importance: Normal Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 720 Lines: 21 >> >> USB 2.01+ full-speed devices can have extended descriptor as well >> and can support LPM. > > Yes, they in theory can, but what happens if they are actually > asked to do so? On how many devices have you tested this patch? > I have tested this on Qualcomm USB controller, LPM works. LPM works with same controller with Microsoft Windows as well. I have looked through few Broadcom/CSR controllers, but could not find one that had USB version >= 2.01. Thanks, Rupesh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/