linux-kernel - Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Conexant codec

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Message-ID: <53B27ED7.4070401@canonical.com>
Date:	Tue, 01 Jul 2014 17:26:47 +0800
From:	Hui Wang <hui.wang@...onical.com>
To:	Jan Kiszka <jan.kiszka@....de>
CC:	Hui Wang <jason77.wang@...il.com>, tiwai@...e.de,
	alsa-devel@...a-project.org, alex.hung@...onical.com,
	yk@...onical.com, david.henningsson@...onical.com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [V2 PATCH] ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads
 with Conexant codec

On 07/01/2014 03:38 PM, Jan Kiszka wrote:
> On 2014-07-01 04:15, Hui Wang wrote:
>> On 06/30/2014 02:45 PM, Jan Kiszka wrote:
>>> On 2014-06-30 04:04, Hui Wang wrote:
>>>> On 06/29/2014 07:33 PM, Jan Kiszka wrote:
>>>>> On 2013-11-27 07:47, Hui Wang wrote:
>>>>>> Most Thinkpad Edge series laptops use conexant codec, so far although
<snip>
>>>>>>
>>> Is there anything I can debug or any information I can collect from my
>>> box to examine this?
>> What is the linux distribution on your machine? And use showkey to catch
>> the keycode of that button.
> I'm running OpenSUSE 13.1. The reported keycode of the power button is 116.
It seems the keycode is correct, it is power keycode rather the mute 
keycode.

Could you please do some debug, let us find which line of code is the 
root cause for this problem. for example:

after running the line, the problem shows up:

1.     if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, 
&found, NULL)) && found) // in the sound/pci/hda/thinkpad_helper.c, 
is_thinkpad()

2.     return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, 
&found, NULL)) && found; // same as above

3.         if (led_set_func(TPACPI_LED_MUTE, false) >= 0) { //in the 
sound/pci/hda/thinkpad_helper.c, hda_fixup_thinkpad_acpi()

4. if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) { // same as above


>
> Jan
>
>

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