linux-kernel - Re: [PATCH 1/3] input: add event codes for user programmable switch events

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Date:   Sun, 07 Aug 2022 16:01:31 +0000
From:   Caleb Connolly <caleb@...nolly.tech>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     Andy Gross <agross@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-input@...r.kernel.org,
        phone-devel@...r.kernel.org
Subject: Re: [PATCH 1/3] input: add event codes for user programmable switch events



On 01/07/2022 00:11, Bjorn Andersson wrote:
> On Mon 16 May 09:22 CDT 2022, Caleb Connolly wrote:
>
>> Add SW_PROG{1,2,3,4} for device switches which are handled by userspace.
>>
>> This can be used for devices with "generic" switches which are intended
>> to be user-programmable, for example OnePlus phones contain a tri-state
>> key which can be used for switching between mute/vibrate/ring, or
>> programmed by the user to perform any arbitrary actions.
>>
>> These are analogous to the keys KEY_PROG{1,2,3,4} found on some
>> keyboards.
>>
>> Signed-off-by: Caleb Connolly <caleb@...nolly.tech>
>
> This looks reasonable to me.
>
> Dmitry, what do you think?
Any chance someone could take a look at this? (Sorry I really should have bumped
this a few weeks ago).
>
> Regards,
> Bjorn
>
>> ---
>> See the next patch in this series for an example usecase.
>> ---
>>   include/linux/mod_devicetable.h        | 2 +-
>>   include/uapi/linux/input-event-codes.h | 6 +++++-
>>   2 files changed, 6 insertions(+), 2 deletions(-)
>>
>> diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
>> index 5da5d990ff58..45364fbeaaf7 100644
>> --- a/include/linux/mod_devicetable.h
>> +++ b/include/linux/mod_devicetable.h
>> @@ -326,7 +326,7 @@ struct pcmcia_device_id {
>>   #define INPUT_DEVICE_ID_LED_MAX		0x0f
>>   #define INPUT_DEVICE_ID_SND_MAX		0x07
>>   #define INPUT_DEVICE_ID_FF_MAX		0x7f
>> -#define INPUT_DEVICE_ID_SW_MAX		0x10
>> +#define INPUT_DEVICE_ID_SW_MAX		0x14
>>   #define INPUT_DEVICE_ID_PROP_MAX	0x1f
>>
>>   #define INPUT_DEVICE_ID_MATCH_BUS	1
>> diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
>> index dff8e7f17074..339153886a13 100644
>> --- a/include/uapi/linux/input-event-codes.h
>> +++ b/include/uapi/linux/input-event-codes.h
>> @@ -917,7 +917,11 @@
>>   #define SW_MUTE_DEVICE		0x0e  /* set = device disabled */
>>   #define SW_PEN_INSERTED		0x0f  /* set = pen inserted */
>>   #define SW_MACHINE_COVER	0x10  /* set = cover closed */
>> -#define SW_MAX			0x10
>> +#define SW_PROG1		0x11  /* set = program 1 (user defined) */
>> +#define SW_PROG2		0x12  /* set = program 2 (user defined) */
>> +#define SW_PROG3		0x13  /* set = program 3 (user defined) */
>> +#define SW_PROG4		0x14  /* set = program 4 (user defined) */
>> +#define SW_MAX			0x14
>>   #define SW_CNT			(SW_MAX+1)
>>
>>   /*
>> --
>> 2.36.1
>>
>>

--
Kind Regards,
Caleb