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[Arnoques <arnoques@xxxxxxxxx>]

Hi Andrey. I'm glad someone is still interested in this. 
Yes, the device must first be supported by the kernel, according to Peter Hutterer 's comment in the freedesktop bug. If this driver is included in a module it will be only imported into the kernel when the device is present, just like any other driver.
I haven't investigated yet what's the preferred way to communicate the kernel space driver to the user space, but there should be documentation about this. You could also check out how a touchpad driver works.
Please do keep us posted if you make any progress.

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https://bugs.launchpad.net/bugs/543119

Title:
  Lenovo touch inductive SlideNav panel not work

Status in The Linux Kernel:
  Confirmed
Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Lenovo Yxx0 laptops have a touch inductive panel http://www.gigamark.com/images/stories/8/Lenovo_y550/Untitled-4.jpg contains the pretty cool navigation slidebar http://www.fcenter.ru/img/article/notebooks/Lenovo_IdeaPad_Y550P/152399.jpg
  How SlideNav should work:
  User assign applications to the numbers. When user want to launch one of them, they touch slidenav in any place (touch but did not raise finger), after that driver show applications list on the screen http://www.fcenter.ru/img/article/notebooks/Lenovo_IdeaPad_Y550P/152341.jpg User move finger to the lift or to the right, until needed application was selected on the screen. After apllication selected user raise finger and this application started.

  I tried use tp-smapi-dkms for detect slidenav buttons, but it's not work for me with error: No such device.
  Even if I was able to detect slidenav buttons it's not enough - there need a program that works like an official Lenovo driver (show applications list when user touch panel).

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