** Description changed:

  [Impact]
  Support to ALPS PTP Stick and Touchpad devices found on latest Dell Latitude 
systems.
  
  [Fix]
- Requires backport of patches submitted by ALPS in upstream kernel 4.12
+ This fix in two parts:
+ 1. Requires backport/cherry-pick of patch submitted by ALPS in upstream 
kernel 4.13.
+ The backport is only due to the differences in the context.
+ See: 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.13-rc6&id=504c932c7c47a6b4c572302a13873f7d83af1ff3
+ 
+ 2. Additional sauce patch adds the device-id of the new PTP stick. This
+ patch is already submitted to linux-input and is pending review.
+ See: http://marc.info/?l=linux-input&m=150235885218076&w=2
  
  [Test Case]
  Verified on the machine has this issue, and confirm this patch works.
  
  [Regression Potential]
  The patch adds new device ids to hid multi-touch driver. With strict 
conditional filtering based on these device-ids, regression potential is 
minimal.
  
  This bug is used for tracking purposes, please do not triage.

** Description changed:

  [Impact]
  Support to ALPS PTP Stick and Touchpad devices found on latest Dell Latitude 
systems.
  
  [Fix]
  This fix in two parts:
  1. Requires backport/cherry-pick of patch submitted by ALPS in upstream 
kernel 4.13.
- The backport is only due to the differences in the context.
+ (The backport is only for Xenial due to the differences in context)
  See: 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.13-rc6&id=504c932c7c47a6b4c572302a13873f7d83af1ff3
  
  2. Additional sauce patch adds the device-id of the new PTP stick. This
  patch is already submitted to linux-input and is pending review.
  See: http://marc.info/?l=linux-input&m=150235885218076&w=2
  
  [Test Case]
  Verified on the machine has this issue, and confirm this patch works.
  
  [Regression Potential]
  The patch adds new device ids to hid multi-touch driver. With strict 
conditional filtering based on these device-ids, regression potential is 
minimal.
  
  This bug is used for tracking purposes, please do not triage.

** Tags added: originate-from-1706273 somerville

** Changed in: hwe-next
       Status: New => In Progress

** Changed in: hwe-next
   Importance: Undecided => Critical

** Description changed:

  [Impact]
  Support to ALPS PTP Stick and Touchpad devices found on latest Dell Latitude 
systems.
  
  [Fix]
  This fix in two parts:
  1. Requires backport/cherry-pick of patch submitted by ALPS in upstream 
kernel 4.13.
  (The backport is only for Xenial due to the differences in context)
  See: 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.13-rc6&id=504c932c7c47a6b4c572302a13873f7d83af1ff3
  
  2. Additional sauce patch adds the device-id of the new PTP stick. This
  patch is already submitted to linux-input and is pending review.
  See: http://marc.info/?l=linux-input&m=150235885218076&w=2
  
  [Test Case]
- Verified on the machine has this issue, and confirm this patch works.
+ Verified on the systems affected with this issue and confirmed that this 
solution works.
  
  [Regression Potential]
  The patch adds new device ids to hid multi-touch driver. With strict 
conditional filtering based on these device-ids, regression potential is 
minimal.
  
  This bug is used for tracking purposes, please do not triage.

** Changed in: hwe-next
     Assignee: (unassigned) => Shrirang Bagul (shrirang-bagul)

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https://bugs.launchpad.net/bugs/1712481

Title:
  HID: multitouch: Support ALPS PTP Stick and Touchpad devices

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