Re: Re: No battery information on a ACER Travelmate 4001LMi

Re: Re: No battery information on a ACER Travelmate 4001LMi

[Johannes Kuhlmann]

Hi,

I have the same problem with an Acer Travelmate 4001LCi. What I have
been able to find out so far is, that these laptops feature a 'smart
battery'. For these battery there is currently no driver, but Shaohua
Li from this list considers writing one. I would be very grateful, if
you really do this :).
I tried the driver from ftp://ftp.poupinou.org/acpi/i2c-acpi-ec.c. It
correctly detects the battery, but tells me that there is no module
'smartbatt'. I guess this is the intended behaviour.
If there is something I can do in order to get a driver for my smart
battery (provide information, test drivers, ...), just tell me.

Greets,
Johannes
(also running on a 2.6.9 kernel)



On Thu, 04 Nov 2004 20:29:25 +0100, François Valenduc
<fvalenduc-IWqWACnzNjyZIoH1IeqzKA@public.gmane.org> wrote:
> François Valenduc a écrit :
> 
> 
> 
> > Hello everybody,
> >
> > I own a ACER Travelmate 4001Lmi laptop and I don't manage to get
> > battery information with ACPI. It has an intel centrino 1,5Ghz
> > processor and an Intel 855GM chipset. I have compiled all necessary
> > modules but in fact I can only get information about the fan, the
> > processor and thermal zone. I can no more get the status of the
> > adapter. I have tried different kernel boot parameters (pci=noacpi,
> > acpi=on, acpi=ht), but it's always the same. With the latter, there is
> > even no /proc/acpi directory. Here belows is the kernel configuration
> > concerning ACPI I have choosen:
> >
> > CONFIG_ACPI=y
> > CONFIG_ACPI_BOOT=y
> > CONFIG_ACPI_INTERPRETER=y
> > # CONFIG_ACPI_SLEEP is not set
> > CONFIG_ACPI_AC=m
> > CONFIG_ACPI_BATTERY=m
> > CONFIG_ACPI_BUTTON=m
> > CONFIG_ACPI_FAN=m
> > CONFIG_ACPI_PROCESSOR=m
> > CONFIG_ACPI_THERMAL=m
> > # CONFIG_ACPI_ASUS is not set
> > # CONFIG_ACPI_TOSHIBA is not set
> > # CONFIG_ACPI_CUSTOM_DSDT is not set
> > CONFIG_ACPI_BLACKLIST_YEAR=0
> > CONFIG_ACPI_DEBUG=y
> > CONFIG_ACPI_BUS=y
> > CONFIG_ACPI_EC=y
> > CONFIG_ACPI_POWER=y
> > CONFIG_ACPI_PCI=y
> > CONFIG_ACPI_SYSTEM=y
> > CONFIG_X86_ACPI_CPUFREQ=m
> > # CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
> > # CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI is not set
> > CONFIG_HOTPLUG_PCI_ACPI=m
> > # CONFIG_HOTPLUG_PCI_ACPI_IBM is not set
> > CONFIG_SERIAL_8250_ACPI=y
> >
> > In fact, in side the /proc/ac_adapter and /proc/acpi/battery, there is
> > nothing. So I guess there is something wrong with ac and battery
> > modules. Nevertheless, I am able to load these modules.
> >
> > Thanks for your advices.
> > François Valenduc
> >
> Hello again,
> I forgot to say something important: I am using the 2.6.9 kernel.
> 
> 
> 
> 
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Re: Re: No battery information on a ACER Travelmate 4001LMi

[Pedro Venda]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Johannes Kuhlmann wrote:
| Hi,
|
| I have the same problem with an Acer Travelmate 4001LCi. What I have
| been able to find out so far is, that these laptops feature a 'smart
| battery'. For these battery there is currently no driver, but Shaohua
| Li from this list considers writing one. I would be very grateful, if
| you really do this :).
| I tried the driver from ftp://ftp.poupinou.org/acpi/i2c-acpi-ec.c. It
| correctly detects the battery, but tells me that there is no module
| 'smartbatt'. I guess this is the intended behaviour.
| If there is something I can do in order to get a driver for my smart
| battery (provide information, test drivers, ...), just tell me.

I have a travelmate 4001WLMi. I didn't see Shaohua Li offering to do
such drivers, but he sure gave me some useful tips. I will be trying
also when there is some spare time. So far i read some ACPI
specification and practised some very simple kernel modules while
reading Robert Love's book about kernel development.

the driver you pointed was written by bruno ducrot and he abandoned it
because:
"1- I haven't real use for it (I searched actually something else,
~   related to the LCD backlight at that time),
2- it's very slow compared to a well wrotten EC firmware which will
~   cache the information needed for batteries and expose them in the EC
~   register space, so I thought no bios developper would use this at
least for modern laptops."

I don't think the driver can actually talk to the battery however I was
able to detect it on the smbus.

the lmsensors team have some support for smart batteries. I don't know
if it has a bright future (as ducrot's driver), but it's a start. I'll
be checking it out too, but I would prefer to develop a kernel driver
according to Li's tips.

regards,
pedro venda.
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Re: Re: No battery information on a ACER Travelmate 4001LMi

[Pedro Venda]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

| I have a travelmate 4001WLMi. I didn't see Shaohua Li offering to do
| such drivers,

Absolutely no intention to criticise! just stating I did not see such
post. On the other hand, I joined the list after Li, so he probably said
that before i joined.

regards,
pedro venda.
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Re: Re: No battery information on a ACER Travelmate 4001LMi

[Johannes Kuhlmann]

On Mon, 08 Nov 2004 15:49:27 +0000, Pedro Venda <pjlv-aHmAgkVUFT6Joy8PIJZ9VA@public.gmane.org> wrote:
> Absolutely no intention to criticise! just stating I did not see such
> post. On the other hand, I joined the list after Li, so he probably said
> that before i joined.

No problem. I was actually referring to this post:
http://sourceforge.net/mailarchive/message.php?msg_id=9485814

Regards,
Johannes


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RE: Re: No battery information on a ACER Travelmate 4001LMi

[Li, Shaohua]

>On Mon, 08 Nov 2004 15:49:27 +0000, Pedro Venda <pjlv-aHmAgkVUFT6Joy8PIJZ9VA@public.gmane.org>
>wrote:
>> Absolutely no intention to criticise! just stating I did not see such
>> post. On the other hand, I joined the list after Li, so he probably
said
>> that before i joined.
>
>No problem. I was actually referring to this post:
>http://sourceforge.net/mailarchive/message.php?msg_id=9485814
I'm sorry I possibly haven't enough time for this issue currently.
Somebody said he was working on this issue based on Bruno Ducrot
<ducrot-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>'s EC-SMbus host driver. If anybody is willing to
do it, I'm glad to share my experience.

Thanks,
Shaohua


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Re: Re: No battery information on a ACER Travelmate 4001LMi

[Pedro Venda]

Li, Shaohua wrote:
>>On Mon, 08 Nov 2004 15:49:27 +0000, Pedro Venda <pjlv-aHmAgkVUFT6Joy8PIJZ9VA@public.gmane.org>
>>wrote:
>>
>>>Absolutely no intention to criticise! just stating I did not see such
>>>post. On the other hand, I joined the list after Li, so he probably
> 
> said
> 
>>>that before i joined.
>>
>>No problem. I was actually referring to this post:
>>http://sourceforge.net/mailarchive/message.php?msg_id=9485814
> 
> I'm sorry I possibly haven't enough time for this issue currently.
> Somebody said he was working on this issue based on Bruno Ducrot
> <ducrot-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>'s EC-SMbus host driver. If anybody is willing to
> do it, I'm glad to share my experience.

I and someone else both said we'd be working on it.

I am looking at the lmsensors code and trying to find enough time 
between my student work to learn enough to start changing and coding. 
The bruno ducrot's driver will also be a reference.

don't hold your breath. this will take time.

thanks for the offered helo Shaohua.

regards,
pedro venda.


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Re: Re: No battery information on a ACER Travelmate 4001LMi

[Johannes Kuhlmann]

I would also like to work on a driver, but the problem is I really
don't have a clue where to start and how to do it. I've never done any
driver programming.
Maybe the people, who are interested in such an effort, should get
together and coordinate their work, so that we don't end up with a
bunch of half finished drivers, but with a complete one.

Regards,
Johannes

On Tue, 09 Nov 2004 12:00:40 +0000, Pedro Venda <pjlv-aHmAgkVUFT6Joy8PIJZ9VA@public.gmane.org> wrote:
> Li, Shaohua wrote:
> 
> 
> >>On Mon, 08 Nov 2004 15:49:27 +0000, Pedro Venda <pjlv-aHmAgkVUFT6Joy8PIJZ9VA@public.gmane.org>
> >>wrote:
> >>
> >>>Absolutely no intention to criticise! just stating I did not see such
> >>>post. On the other hand, I joined the list after Li, so he probably
> >
> > said
> >
> >>>that before i joined.
> >>
> >>No problem. I was actually referring to this post:
> >>http://sourceforge.net/mailarchive/message.php?msg_id=9485814
> >
> > I'm sorry I possibly haven't enough time for this issue currently.
> > Somebody said he was working on this issue based on Bruno Ducrot
> > <ducrot-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>'s EC-SMbus host driver. If anybody is willing to
> > do it, I'm glad to share my experience.
> 
> I and someone else both said we'd be working on it.
> 
> I am looking at the lmsensors code and trying to find enough time
> between my student work to learn enough to start changing and coding.
> The bruno ducrot's driver will also be a reference.
> 
> don't hold your breath. this will take time.
> 
> thanks for the offered helo Shaohua.
> 
> regards,
> pedro venda.
> 
> 
> 
> 
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