Re: [PATCH v2] toshiba_acpi: Make toshiba_eco_mode_available more robust

From: Azael Avalos
Date: Mon Feb 09 2015 - 23:59:16 EST

Hi Darren,

2015-02-09 21:22 GMT-07:00 Darren Hart <dvhart@xxxxxxxxxxxxx>:
> On Mon, Feb 09, 2015 at 08:55:02PM -0700, Azael Avalos wrote:
>> Some Toshiba laptops do not come with the ECO led installed, however,
>> the driver is registering support for it when it should not.
>> This patch makes the toshiba_eco_mode_available function more robust
>> in detecting ECO led capabilities, not registering the led on laptops
>> that do not support it and registering the led when it really does.
>> The ECO led function now returns 0x8e00 (Not Installed) by querying
>> with in[3] = 0, whenever theres no physical LED installed, and
>> returning 0x8300 (Input Data Error) when it is, however, there are
>> some BIOSes that have stub function calls not returning anything and
>> and the LED device was being registered too, hence the change of the
>> default return value from 1 to 0.
>> Signed-off-by: Azael Avalos <coproscefalo@xxxxxxxxx>
> Careful with whitespace errors caught by checkpatch. Fixed that and corrected a minor
> grammatical issue in the comment block - since I was late in reviewing ;-)

Apologies for that, between my bit of dyslexia (I tend to switch
numbers and letters)
and my bad English...

Good thing I'm not working at a bank or stock exchange ;-)

> Applied and queued, thanks.
> --
> Darren Hart
> Intel Open Source Technology Center


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