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SubjectRe: [PATCH 1/2] hid-multitouch: work on default classes and renaming of classes
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On Fri, Jan 28, 2011 at 18:18, Henrik Rydberg <rydberg@euromail.se> wrote:
> Hi Benjamin,
>
>> The safest quirk for a device (the one that works out of the box for
>> most of them) is the MT_QUIRK_NOT_SEEN_MEANS_UP. Indeed, it does not
>> make any assumption on the device. When adding a new device, we can
>> easily test it against MT_CLS_DEFAULT, and then optimize it with other
>> quirks: that's why no device use MT_CLS_DEFAULT right now.
>>
>> This patch introduce also MT_CLS_DUAL_DEFAULT which has the same purpose
>> than MT_CLS_DEFAULT, but for dual touch panels.
>
> But it is used anywhere?

Hi Henrik,

In it's current form, no. I often rely on it to make a quick patch
(just adding the ids in hid-ids, hid-core and hid-multitouch) to test
a new (dual touch) device. I thought it would be useful to be
mainstream.

>
>> Finally, the patch renames MT_CLS_DUAL1 to MT_CLS_DUAL_INRANGE_CONTACTID
>> and MT_CLS_DUAL2 to MT_CLS_DUAL_INRANGE_CONTACTNUMBER for better
>> readability.
>>
>> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
>> ---
>
> The patch description and the content lacks a certain
> distinctness. Please single out janitory actions into a separate
> patch, or, if possible, skip it altogether.

ok, will do

>
>>  drivers/hid/hid-multitouch.c |   25 +++++++++++++++----------
>>  1 files changed, 15 insertions(+), 10 deletions(-)
>>
>> diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
>> index 07d3183..ffe2a76 100644
>> --- a/drivers/hid/hid-multitouch.c
>> +++ b/drivers/hid/hid-multitouch.c
>> @@ -24,6 +24,7 @@
>>
>>
>>  MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
>> +MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
>
> Adding this is fine, based on your prior contributions. Perhaps it
> should be motivated as such in a separate patch instead.

ok

>
>>  MODULE_DESCRIPTION("HID multitouch panels");
>>  MODULE_LICENSE("GPL");
>>
>> @@ -65,10 +66,11 @@ struct mt_class {
>>  };
>>
>>  /* classes of device behavior */
>> -#define MT_CLS_DEFAULT       1
>> -#define MT_CLS_DUAL1 2
>> -#define MT_CLS_DUAL2 3
>> -#define MT_CLS_CYPRESS       4
>> +#define MT_CLS_DEFAULT                               1
>> +#define MT_CLS_DUAL_DEFAULT                  2
>> +#define MT_CLS_DUAL_INRANGE_CONTACTID                3
>> +#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER    4
>> +#define MT_CLS_CYPRESS                               10
>
> There is no need to change the numbering for unchanged names.

I just wanted to keep device-specific at the end of the list. Hence
the 10 to keep a little space between generic and devices:
MT_CLS_DUAL_CONFIDENCE_CONTACT* are coming...


>
>>
>>  /*
>>   * these device-dependent functions determine what slot corresponds
>> @@ -104,13 +106,16 @@ static int find_slot_from_contactid(struct mt_device *td)
>>
>>  struct mt_class mt_classes[] = {
>>       { .name = MT_CLS_DEFAULT,
>> -             .quirks = MT_QUIRK_VALID_IS_INRANGE,
>> +             .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
>>               .maxcontacts = 10 },
>> -     { .name = MT_CLS_DUAL1,
>> +     { .name = MT_CLS_DUAL_DEFAULT,
>> +             .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP,
>> +             .maxcontacts = 2 },
>> +     { .name = MT_CLS_DUAL_INRANGE_CONTACTID,
>>               .quirks = MT_QUIRK_VALID_IS_INRANGE |
>>                       MT_QUIRK_SLOT_IS_CONTACTID,
>>               .maxcontacts = 2 },
>> -     { .name = MT_CLS_DUAL2,
>> +     { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
>>               .quirks = MT_QUIRK_VALID_IS_INRANGE |
>>                       MT_QUIRK_SLOT_IS_CONTACTNUMBER,
>>               .maxcontacts = 2 },
>> @@ -466,15 +471,15 @@ static const struct hid_device_id mt_devices[] = {
>>                       USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
>>
>>       /* GeneralTouch panel */
>> -     { .driver_data = MT_CLS_DUAL2,
>> +     { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
>>               HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
>>                       USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
>>
>>       /* PixCir-based panels */
>> -     { .driver_data = MT_CLS_DUAL1,
>> +     { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
>>               HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
>>                       USB_DEVICE_ID_HANVON_MULTITOUCH) },
>> -     { .driver_data = MT_CLS_DUAL1,
>> +     { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
>>               HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
>>                       USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
>>
>> --
>> 1.7.3.4
>>
>
> Thanks,
> Henrik
>

Thanks for the review,
Benjamin
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