[Bug 1913763] Re: hyperv: unable to distinguish PTP devices

[Dan Streetman]

** Description changed:

+ [SRU TEMPLATE]
+ 
+ please see template in bug 1917458 for sru template
+ 
+ [original description]
+ 
  Hyperv provides a PTP device. On system with multiple PTP devices,
  services like Chrony don't have a way to know which one is which.
  
  We would like to have a udev rule to create a symlink to the hyperv
  clock. This way, services could be configured to always use this clock
  no matter if it is ptp0, ptp1, etc..
  
  For example:
  
  ```
  SUBSYSTEM=="ptp", ATTR{clock_name}=="hyperv", SYMLINK += "ptp_hyperv"
  ```

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https://bugs.launchpad.net/bugs/1913763

Title:
  hyperv: unable to distinguish PTP devices

Status in systemd package in Ubuntu:
  Fix Committed

Bug description:
  [SRU TEMPLATE]

  please see template in bug 1917458 for sru template

  [original description]

  Hyperv provides a PTP device. On system with multiple PTP devices,
  services like Chrony don't have a way to know which one is which.

  We would like to have a udev rule to create a symlink to the hyperv
  clock. This way, services could be configured to always use this clock
  no matter if it is ptp0, ptp1, etc..

  For example:

  ```
  SUBSYSTEM=="ptp", ATTR{clock_name}=="hyperv", SYMLINK += "ptp_hyperv"
  ```

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