Return-Path: MIME-Version: 1.0 In-Reply-To: <5d223510909040942u7ee2ae0ds96e1321b1fab24b9@mail.gmail.com> References: <5d223510909040942u7ee2ae0ds96e1321b1fab24b9@mail.gmail.com> Date: Mon, 14 Sep 2009 15:17:02 -0300 Message-ID: Subject: Re: choppy audio on ARM From: Douglas Lopes Pereira To: Rafael Seste Cc: linux-bluetooth@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Hi, On Fri, Sep 4, 2009 at 1:42 PM, Rafael Seste wrote: > > Hi all, > > A couple of months ago I sent a email about a problem with the > bluetooth audio on a ARM platform. I have a choppy audio on the > incoming stream. I still didn't solve this problem but I found a setup > that this problem doesn't happens. > > My ARM device has only one USB port, so I always connect the BT dongle > in this port. Last week I bought a USB hub and plug it into the usb > and the BT dongle in the hub. Miraculously this problem disappeared. I > removed the hub and tried again and the problem returns. > > Does anybody has any clue why the USB hub "fixed" this choppy audio??? > Does it use a different USB drivers? > > tks in advance > > -- > Rafael S. Seste > -- > To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at ?http://vger.kernel.org/majordomo-info.html does anyone has more information on that? I have the same scenario here. Same kernel modules loaded but audio only works if my bluetooth dongle is connected on my external self-powered USB Hub. Check out dmesg output: - Connecting bluetooth dongle over USB Hub: usb 1-1: new high speed USB device using orion-ehci and address 19 usb 1-1: configuration #1 chosen from 1 choice hub 1-1:1.0: USB hub found hub 1-1:1.0: 4 ports detected usb 1-1.3: new full speed USB device using orion-ehci and address 20 usb 1-1.3: configuration #1 chosen from 1 choice - Connecting bluetooth directly on Sheeva Plug: usb 1-1: new full speed USB device using orion-ehci and address 14 usb 1-1: configuration #1 chosen from 1 choice The only difference is the high device speed device which is my USB Hub. Can anyone help me to understand what is happening? Thanks, Douglas