2009-03-11 22:51:28

by Russ Dill

[permalink] [raw]
Subject: btusb+slob

After running into problems with btusb on my OMAP3 (arm) based Beagle
Board, I discovered that switching from SLOB to SLAB causes the
problems to go away. With SLOB:

Scanning ...
05:16:CF:F7:04:20 n/a
00:11:F6:05:79:95 ....R#w
00:1A:8A:DB:E8:3D ....R$w9
00:16:CF:F7:04:20
05:1A:8A:DB:E8:3D n/a

Devices:
hci0 00:00:00:00:A8:AE

Connections:
< ACL 00:11:F6:05:79:95 handle 0 state 5 lm MASTER


With SLAB:

Scanning ...
00:1A:8A:DB:E8:3D SGH-T629

Devices:
hci0 00:1B:DC:0F:A8:AE

Connections:
< ACL 00:11:F6:05:79:95 handle 42 state 1 lm SLAVE

I have not been able to test on other architectures yet to determine
if it is another component in the chain (such as the usb OTG
controller) misbehaving with SLOB. This is with git latest (post
2.6.29-rc7) and a number of OMAP branches.


2009-03-12 07:10:37

by Russ Dill

[permalink] [raw]
Subject: Re: [beagleboard] btusb+slob

hcitool - HCI Tool ver 3.36

On Wed, Mar 11, 2009 at 11:58 PM, Hunyue Yau <[email protected]> wrote:
> Russ,
>
> What version of Bluez userland are you using?
>
> On Wednesday 11 March 2009 15:51, Russ Dill wrote:
>> After running into problems with btusb on my OMAP3 (arm) based Beagle
>> Board, I discovered that switching from SLOB to SLAB causes the
>> problems to go away. With SLOB:
>>
>> Scanning ...
>> =A0 =A0 =A0 =A0 05:16:CF:F7:04:20 =A0 =A0 =A0 n/a
>> =A0 =A0 =A0 =A0 00:11:F6:05:79:95 =A0 =A0 =A0 ....R#w
>> =A0 =A0 =A0 =A0 00:1A:8A:DB:E8:3D =A0 =A0 =A0 ....R$w9
>> =A0 =A0 =A0 =A0 00:16:CF:F7:04:20
>> =A0 =A0 =A0 =A0 05:1A:8A:DB:E8:3D =A0 =A0 =A0 n/a
>>
>> Devices:
>> =A0 =A0 =A0 =A0 hci0 =A0 =A000:00:00:00:A8:AE
>>
>> Connections:
>> =A0 =A0 =A0 =A0 < ACL 00:11:F6:05:79:95 handle 0 state 5 lm MASTER
>>
>>
>> With SLAB:
>>
>> Scanning ...
>> =A0 =A0 =A0 =A0 00:1A:8A:DB:E8:3D =A0 =A0 =A0 SGH-T629
>>
>> Devices:
>> =A0 =A0 =A0 hci0 =A0 =A000:1B:DC:0F:A8:AE
>>
>> Connections:
>> =A0 =A0 =A0 < ACL 00:11:F6:05:79:95 handle 42 state 1 lm SLAVE
>>
>> I have not been able to test on other architectures yet to determine
>> if it is another component in the chain (such as the usb OTG
>> controller) misbehaving with SLOB. This is with git latest (post
>> 2.6.29-rc7) and a number of OMAP branches.
>>
>> --~--~---------~--~----~------------~-------~--~----~
>> You received this message because you are subscribed to the Google Group=
s
>> "Beagle Board" group. To post to this group, send email to
>> [email protected].
>> To unsubscribe from this group, send email to
>> [email protected] For more options, visit this gro=
up
>> at http://groups.google.com/group/beagleboard?hl=3Den
>> -~----------~----~----~----~------~----~------~--~---
>
> --
> Hunyue Yau
> http://www.hy-research.com/
>

2009-03-12 06:58:05

by Hunyue Yau

[permalink] [raw]
Subject: Re: [beagleboard] btusb+slob

Russ,

What version of Bluez userland are you using?

On Wednesday 11 March 2009 15:51, Russ Dill wrote:
> After running into problems with btusb on my OMAP3 (arm) based Beagle
> Board, I discovered that switching from SLOB to SLAB causes the
> problems to go away. With SLOB:
>
> Scanning ...
> 05:16:CF:F7:04:20 n/a
> 00:11:F6:05:79:95 ....R#w
> 00:1A:8A:DB:E8:3D ....R$w9
> 00:16:CF:F7:04:20
> 05:1A:8A:DB:E8:3D n/a
>
> Devices:
> hci0 00:00:00:00:A8:AE
>
> Connections:
> < ACL 00:11:F6:05:79:95 handle 0 state 5 lm MASTER
>
>
> With SLAB:
>
> Scanning ...
> 00:1A:8A:DB:E8:3D SGH-T629
>
> Devices:
> hci0 00:1B:DC:0F:A8:AE
>
> Connections:
> < ACL 00:11:F6:05:79:95 handle 42 state 1 lm SLAVE
>
> I have not been able to test on other architectures yet to determine
> if it is another component in the chain (such as the usb OTG
> controller) misbehaving with SLOB. This is with git latest (post
> 2.6.29-rc7) and a number of OMAP branches.
>
> --~--~---------~--~----~------------~-------~--~----~
> You received this message because you are subscribed to the Google Groups
> "Beagle Board" group. To post to this group, send email to
> [email protected].
> To unsubscribe from this group, send email to
> [email protected] For more options, visit this group
> at http://groups.google.com/group/beagleboard?hl=en
> -~----------~----~----~----~------~----~------~--~---

--
Hunyue Yau
http://www.hy-research.com/