touch-packages team mailing list archive

[Kay Sievers <kay@xxxxxxxx>]

(In reply to comment #1)
> Note that, due to a firmware change, the m400 rule should use "gpio_keys"
> instead of "gpio-keys". Here is the new rule:
> 
> SUBSYSTEM=="input", KERNEL=="event*", SUBSYSTEMS=="platform",
> KERNELS=="gpio_keys.6", PROGRAM="/bin/grep '^HP ProLiant m400 Server
> Cartridge$' /proc/device-tree/model", TAG+="power-switch"

That's a neat hack, but in no way upstreamable.

Upstream udev dev will not read the device information from /proc, and will
also not call any external tools like grep.

This all needs to be solved properly on the kernel side, to export real devices
and allow efficient and reliable matching from userspace tools.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1354306

Title:
  gpio shutdown trigger for ProLiant m400 cartridges

Status in systemd:
  Confirmed
Status in “systemd” package in Ubuntu:
  Triaged
Status in “systemd” source package in Trusty:
  Triaged
Status in “systemd” source package in Utopic:
  Triaged

Bug description:
  Similar to the m800 case in LP: #1347776, udev/systemd also needs to
  know how to trigger a graceful shutdown on ProLiant m400 cartridges.

  [Impact]
  Without this change, the power down button will not initiate an OS shutdown on this platform.
  [Test Case]
  Push button. Watch poweroff occur.
  [Regression Potential]
  The new rule is pretty tightly bound to the m400 system - so the risk of this rule matching and impacting behavior on a different platform is minimal. This will presumably cause new code to run and read /proc/device-tree/model on other platforms - but this is already done for the m800 system in both utopic and trusty.

To manage notifications about this bug go to:
https://bugs.launchpad.net/systemd/+bug/1354306/+subscriptions