# Re: \[PATCH\] Add support for the built-in digitizer in the Lenovo W700

- From: Ajay Ramaswamy \<hidden\>
- Date: 2010-12-20 08:52:20 
- List: linux-input
- Page: https://ratatoskr.run/linux-input/2010/12/8915744

```text
Ping

Thank you for your support and encouragement, I have followed your
instructions and made a git patch for the kernel

I have not added any Acked-by line for this patch, I think you need to
do that? Please do the needful.


Thanks & best regards

Ajay

On Mon, Dec 20, 2010 at 10:10 AM, Ping Cheng [ref] wrote:
> On Sun, Dec 19, 2010 at 1:26 AM, Ajay Ramaswamy
> [ref] wrote:
>> Ping
>>
>> Thanks for your support in getting this done. I have made a patch
>> against xf86-input-wacom master in git for Peter.
>
> The patch looks good to me. I thought it would take sometime for you
> to make a git patch since you mentioned that you have not programmed
> in C for 20 years.
>
> With your prompt reply, I think you can make a kernel patch just fine.
> Please make your kernel patch based on the next branch of
> git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git and
> submit it to linux-input@vger.kernel.org,
>
> Thank you.
>
> Ping
>
>> Hopefully all this will result in fedora 15 having support for my laptop.
>>
>> Thanks & best regards
>>
>> Ajay
>>
>> On Sun, Dec 19, 2010 at 6:19 AM, Ping Cheng [ref] wrote:
>>> On Thu, Dec 16, 2010 at 6:37 AM, Ajay Ramaswamy [ref] wrote:
>>>> Hello Ping Cheng
>>>>
>>>> I have been using the tablet for the last 4 months without any
>>>> problems, Today I have updated my patches against the current
>>>> development series 0.10.10, can you accept these patches now?
>>>
>>> The xf86-input-wacom looks fine. If you don't mind, please make a
>>> patch in git format with my Acked-by tag so Peter can merge it to the
>>> git repo.
>>>
>>> I'll make a git patch based on your input-wacom-thinkpad-w700.patch
>>> and submit it to linux-input on your behalf.
>>>
>>> Thank you.
>>>
>>> Ping
>>>
>>>> My request for testing has not got any response so far! Perhaps the
>>>> laptop is too exotic for it to be used widely by Linux users.
>>>>
>>>> http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/HELP-W700-color-calibration-or-finger-print-reader-and-tablet-in/m-p/211014#M7584
>>>>
>>>> and
>>>>
>>>> http://forum.thinkpads.com/viewtopic.php?f=48&t=89292&hilit=w700+wacom+linux
>>>>
>>>> and
>>>>
>>>> http://forums.fedoraforum.org/showthread.php?t=249263&highlight=w700+wacom
>>>>
>>>>
>>>> Thanks for your consideration.
>>>>
>>>> with best regards
>>>> Ajay
>>>>
>>>> On Tue, Jul 27, 2010 at 10:49 PM, Ping Cheng [ref] wrote:
>>>>> On Tue, Jul 27, 2010 at 5:22 AM, Ajay Ramaswamy [ref] wrote:
>>>>>> On Tuesday 27 Jul 2010 12:03:38 pm Ping Cheng wrote:
>>>>>>
>>>>>>> >> I do have one question though: did you add LENOVO_VENDOR_ID and 0x6004
>>>>>>> >> to the ignore list of hid-core.c in your kernel source?
>>>>>>> >
>>>>>>> > NO, should I do that?
>>>>>>>
>>>>>>> Oh, weird. If you didn't add it to the ignore list, it should be
>>>>>>> grabbed by HID. That is Wacom driver can not take control of it. Maybe
>>>>>>> the structure has been changed for your kernel version?
>>>>>>>
>>>>>>> > Like I said I haven't programmed in C for 20 years so
>>>>>>> > most of this is shooting in the dark.
>>>>>>> >
>>>>>>> > I have also registered in a couple of Thinkpad forums and made a request
>>>>>>> > for testing of these patches, let us see if there is any response.
>>>>>>>
>>>>>>> Good idea. I'll wait for the feedback.
>>>>>>>
>>>>>>> Thank you.
>>>>>>>
>>>>>>> Ping
>>>>>>
>>>>>>
>>>>>> [ajayr@kate by-id]$ ls -l /dev/input/by-id
>>>>>> total 0
>>>>>> lrwxrwxrwx 1 root root 9 Jul 27 17:22 usb-Chicony_Electronics_Co.__Ltd._480c-
>>>>>> event-if00 -> ../event9
>>>>>> lrwxrwxrwx 1 root root 9 Jul 27 17:22 usb-Logitech_USB_Gaming_Mouse-event-
>>>>>> mouse -> ../event5
>>>>>> lrwxrwxrwx 1 root root 9 Jul 27 17:22 usb-Logitech_USB_Gaming_Mouse-mouse ->
>>>>>> ../mouse1
>>>>>> lrwxrwxrwx 1 root root 9 Jul 27 17:22 usb-Tablet_ISD-V4-event-mouse ->
>>>>>> ../event6
>>>>>> lrwxrwxrwx 1 root root 9 Jul 27 17:22 usb-Tablet_ISD-V4-mouse -> ../mouse2
>>>>>> [ajayr@kate by-id]$
>>>>>>
>>>>>>
>>>>>> is this expected? should the tablet show both as mouse and event?
>>>>>
>>>>> Those are fine.
>>>>>
>>>>>> shall I rebuild a kernel with a patch to ignore the LENOVO 0x6004 device like this?
>>>>>
>>>>> Since the tablet works for you, I would think you don't need the
>>>>> change. However, I would also eager to know if there would be any
>>>>> difference in the behaviour of the tablet if you apply the patch.
>>>>> Please make sure you are adding the line to ignorelist instead of
>>>>> blacklist (I do not have the source to diff it).
>>>>>
>>>>> Thank you.
>>>>>
>>>>> Ping
>>>>>
>>>>
>>>
>>
>
```

## Attachments

- [0001-Add-support-for-the-built-in-digitizer-in-the-Lenovo.patch](https://ratatoskr.run/linux-input/2010/12/8915744/attachment/0) (text/x-patch, 2077 bytes)