[Dev] Anyone know what this is?

Daniel Thompson daniel.thompson at linaro.org
Fri Apr 17 08:37:51 UTC 2015


On 17/04/15 02:58, Jorge Ramirez-Ortiz wrote:
> On 04/16/2015 08:58 PM, Scott Bambrough wrote:
>> BT works, I get this on 258, 260 -- hadn't seen it before.
>
> it means that BT is taken longer to initialize - ie: user space (UIM) is taking
> longer to run measured from the time the btwilink.ko is modprobed by udev.

Forgive my interfering but I'm not sure all this comes from userspace 
(although the cause could be in userspace).

I had a look at the ti driver code earlier in the week and first four 
messages looked to me like a failure to get the TI device into firmware 
loading mode.

<speculation based-on="absolutely-no-evidence-at-all">
I wondered if the driver had ended up probing something with nothing 
connected to it.
</speculation>

Either way the timeout for both install/uninstall mean that it's taking 
two (elapsed) seconds longer than it should to complete the operation.


Daniel.


>>
>> Scott
>>
>> On Tue, Apr 14, 2015 at 12:29 PM, Jorge Ramirez-Ortiz <
>> jorge.ramirez-ortiz at linaro.org> wrote:
>>
>>> On 04/14/2015 12:16 PM, Scott Bambrough wrote:
>>>> [   97.961005] (stk) :ldisc_install = 1
>>>> [   98.953839] (stk) :ldisc installation timeout
>>>> [   98.958592] (stk) :ldisc_install = 0
>>>> [   99.953743] (stk) : timed out waiting for ldisc to be un-installed
>>>> [  100.067870] (stk) :ldisc_install = 1
>>>> [  100.254135] (stc): st_tty_open
>>>> [  100.254253] (stk) :line discipline installed
>>>> [  100.254762] (stk) :ti-connectivity/TIInit_11.8.32.bts
>>>> [  101.383101] (stk) :change remote baud rate command in firmware
>>>> [  101.383125] (stk) :skipping the wait event of change remote baud
>>>>
>>>> I was seeing it in the 258 developer image and now in 259 alip image.
>>>>
>>> This is the Bluetooth initialization - there is a time dependency from the
>>> moment the module is inserted to the UIM completing the sequence but there
>>> doesnt seem to be any errors
>>> Does BT work for you?
>>>
>>> I still need to check this message though:
>>>
>>> [  101.383125] (stk) :skipping the wait event of change remote baud
>>>
>>>
>>>
>>>
>>
>
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