The initial "refresh" for devices would fail if there was no data to
read. Instead, we should set the level to unknown, so that the device
appears in the Power panel, and in the "upower -d" output.
The "model_name" and "serial_number" information that upower exports for
batteries that supply a laptop or UPS are supposed to be that of the
battery. But that's very unlikely to happen for devices, such as
wireless mice, keyboards or joysticks.
Look for a sibling input device if a device battery does not contain
model information so as to avoid generic names in UIs.
https://bugs.freedesktop.org/show_bug.cgi?id=102493
The unref of the FD list for the inhibitor was missing which means that
the FD was leaked and the lock was never released. This means that for
each suspend/resume cycle a new inhibitor would be added.
Signed-off-by: Richard Hughes <richard@hughsie.com>
Export approximate battery levels that devices can use, exported by
the kernel as POWER_SUPPLY_CAPACITY_LEVEL_* values.
This avoids bizarrely accurate values showing up in UIs when we only
have ok/warning levels of accuracy in some cases.
https://bugs.freedesktop.org/show_bug.cgi?id=100359
Those levels will not be used to cover warning levels, but approximate
battery levels that devices can use, exported by the kernel as
POWER_SUPPLY_CAPACITY_LEVEL_* values.
See linux/power_supply.h
https://bugs.freedesktop.org/show_bug.cgi?id=100359
Some devices, such as a number of wireless Logitech unifying devices
don't have a precise battery level reporting, and use the Linux
POWER_SUPPLY_CAPACITY_LEVEL_* values.
This minimal fix matches the levels against approximate percentage
values. This is good enough to make the Logitech T650 report battery
again when using the kernel HID++ battery support.
https://bugs.freedesktop.org/show_bug.cgi?id=100359
A 5% battery level should already be in "critical", this matches the
configurable thresholds where the bounds of critical warnings are
inclusive. This also makes it easier to create fake percentages for the
Logitech devices with coarse battery level reporting.
https://bugs.freedesktop.org/show_bug.cgi?id=100359
Paths supplied to testbed.add_device() are relative to /sys/devices
already and therefore must not start with /sys/devices.
This does not change the result of the test.
https://bugs.freedesktop.org/show_bug.cgi?id=100539
The NoPollbatteries option should disable battery polling. Create
a config file with 'NoPollBatteries=true' and ensure we don't get
polling setup for the virtual battery.
https://bugs.freedesktop.org/show_bug.cgi?id=99763
Use an inhibitor lock obtained via logind to make sure the polling
is paused before the system is put to sleep, rather than racing with
the suspension.
https://bugs.freedesktop.org/show_bug.cgi?id=99763
The battery levels might have changed drastically compared to
before sleep. Since we poll batteries at set intervals, it can
take quite some time for the new level to be picked up by the
polling code.
Listen to the "PrepareForSleep" signal emitted by logind, that
gets emitted on suspend and wake up. Pause polling globally on
suspend, and refresh all devices manually and resume polling when
waking up.
https://bugs.freedesktop.org/show_bug.cgi?id=99763
GUdev-CRITICAL **: g_udev_device_get_sysfs_path: assertion 'G_UDEV_IS_DEVICE (device)' failed
This is caused by looking for devices in a particular subsystem which
don't have parents. This can happen with virtual devices, such as the
ones created by test suites.
When setting up polling for our devices, it's possible that the device
hasn't yet been exported on D-Bus, meaning that the object would be
unhelpfully empty.
Use the "native path" instead, so we don't get null in debug outputs, or
timeout names.
Backlights, starting with kernel 4.11 [1] can have a
"brightness_hw_changed" sysfs attribute, which can be polled to detect
hardware initiated brightness changes, such as ones done through
firmware-handled keyboard backlight hotkeys, or firmware controlled
changes (eg. turn off backlight on low battery).
[1] https://patchwork.kernel.org/patch/9544111/https://bugs.freedesktop.org/show_bug.cgi?id=98404
Pass the fd to use to up_kbd_backlight_brightness_read() so that it can
be used with multiple fds. This will be used to support the
"brightness_hw_changed" sysfs attribute.
https://bugs.freedesktop.org/show_bug.cgi?id=98404
There are multiple possible causes for the keyboard brightness to change,
e.g. SetBrightness may get called, or the brightness may get changed
through a hotkey which is handled in firmware.
https://bugs.freedesktop.org/show_bug.cgi?id=98404
