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
Hi Brad,
On Mon, Sep 14, 2009 at 5:47 PM, Brad Midgley <[email protected]> wrote:
> Douglas
>
>> - 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
>
> "lsusb" in both cases should shed more light on the topology and where
> full speed links creep in.
>
> --
> Brad Midgley
>
Could you elaborate a little bit more on that?
Thank you.
Douglas
> - 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
"lsusb" in both cases should shed more light on the topology and where
full speed links creep in.
--
Brad Midgley
Hi,
On Fri, Sep 4, 2009 at 1:42 PM, Rafael Seste <[email protected]> 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 [email protected]
> 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