2008-06-27 11:52:49

by Jui-Hao Chiang

[permalink] [raw]
Subject: [Bluez-devel] Questions about SCO support hci_usb

Dear All:
Does the latest Bluez support 3 simultaneous SCO links from one USB dongle to
3 cell phones?
(According to the discussion thread
http://thread.gmane.org/gmane.linux.bluez.devel/12893/focus=12903, the
hci_usb.c is not fully patched support well)

Bests regards,
Jui-Hao


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2008-06-27 12:07:19

by alok barsode

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Subject: Re: [Bluez-devel] Questions about SCO support hci_usb

Hi,

I think Marcel has written a new usb driver(btusb) which does support
multiple SCO connections(I am not sure).

On Fri, 2008-06-27 at 11:52 +0000, Jui-Hao Chiang wrote:
> Dear All:
> Does the latest Bluez support 3 simultaneous SCO links from one USB dongle to
> 3 cell phones?
> (According to the discussion thread
> http://thread.gmane.org/gmane.linux.bluez.devel/12893/focus=12903, the
> hci_usb.c is not fully patched support well)

The patch was for hci_usb.c. Me and Whoopie had tested it for 2
simultaneous SCO connections. If your using hci_usb, you will need the
alternate setting patch.

-Alok.
>
> Bests regards,
> Jui-Hao
>
>
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> Check out the new SourceForge.net Marketplace.
> It's the best place to buy or sell services for
> just about anything Open Source.
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2008-07-01 13:32:16

by Jui-Hao Chiang

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Subject: Re: [Bluez-devel] Questions about SCO support hci_usb

Hi,
> I think Marcel has written a new usb driver(btusb) which does support
> multiple SCO connections(I am not sure).
I find out one tihing: when I try to build up the linux 2.6.24.
The description of btusb itself says "no SCO support now".
Thus, I guess I should abandon this solution.

> The patch was for hci_usb.c. Me and Whoopie had tested it for 2
> simultaneous SCO connections. If your using hci_usb, you will need the
> alternate setting patch.

Could someone give me some suggestions about the patch things?
(which linux kernel and which version of patch)
I know there are two steps
(1) sco_flowcontrol:
It seems sco-flowcontrol-v4.3.diff is successful in 2.6.23 from this article
http://thread.gmane.org/gmane.linux.bluez.devel/13852
But why there are two revisions for that? and the latest one is "wrong patch
from whoopie"
http://bluetooth-alsa.cvs.sourceforge.net/
bluetooth-alsa/plugz/patches/sco-flowcontrol-v4.3.diff?view=log
(2) alternate setting
there is a latest patch by Alok
http://thread.gmane.org/gmane.linux.bluez.devel/12893/focus=12903
But I don't know which kernel version it is against?

Appreciate any help
Bests regards,
Jui-Hao


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