touch-packages team mailing list archive

[Martin Pitt <martin.pitt@xxxxxxxxxx>]

** Package changed: ubuntu => systemd (Ubuntu)

** Changed in: systemd (Ubuntu)
       Status: New => In Progress

** Also affects: systemd (Ubuntu Trusty)
   Importance: Undecided
       Status: New

** Also affects: systemd (Ubuntu Utopic)
   Importance: Undecided
       Status: In Progress

-- 
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/1347776

Title:
  shutdown trigger on gpio_keys.X for armhf hardware

Status in “systemd” package in Ubuntu:
  In Progress
Status in “systemd” source package in Trusty:
  New
Status in “systemd” source package in Utopic:
  In Progress

Bug description:
  Some ARM board uses GPIO gpio_key.12 for power control (key=116). The
  proposed patch adds entry to logind's 70-power-switch.rules to
  initiate soft shutdown of the cartridge from ilo.

  Here is the udevadm output for /dev/input/event0

  sudo udevadm info --query=all --name=/dev/input/event0 --attribute-
  walk

  Udevadm info starts with the device specified by the devpath and then
  walks up the chain of parent devices. It prints for every device
  found, all possible attributes in the udev rules key format.
  A rule to match, can be composed by the attributes of the device
  and the attributes from one single parent device.

    looking at device '/devices/soc.3/gpio_keys.12/input/input0/event0':
      KERNEL=="event0"
      SUBSYSTEM=="input"
      DRIVER==""

    looking at parent device '/devices/soc.3/gpio_keys.12/input/input0':
      KERNELS=="input0"
      SUBSYSTEMS=="input"
      DRIVERS==""
      ATTRS{name}=="gpio_keys.12"
      ATTRS{phys}=="gpio-keys/input0"
      ATTRS{uniq}==""
      ATTRS{properties}=="0"

    looking at parent device '/devices/soc.3/gpio_keys.12':
      KERNELS=="gpio_keys.12"
      SUBSYSTEMS=="platform"
      DRIVERS=="gpio-keys"
      ATTRS{keys}=="116"
      ATTRS{switches}==""
      ATTRS{disabled_keys}==""
      ATTRS{disabled_switches}==""

    looking at parent device '/devices/soc.3':
      KERNELS=="soc.3"
      SUBSYSTEMS=="platform"
      DRIVERS==""

  Regarding the possibility of gpio_key.12 being used by other systems
  to map to some other trigger, I put in the check that the gpio_key.12
  is associated with power control (keys=116). '116' is supposedly linux
  generic power control in DTS. There is no uniq idSystem or idVendor
  for device /dev/input/event0 as you can see from udevadm output,
  therefore I tried to use the best available combination as a safety
  check. This patch will enable power control for any system vendor
  (Other than the one the patch in intended for) that describes in DTS,
  the trigger gpio_key.12 as power control (116).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1347776/+subscriptions