26 Sep, 2020
1 commit
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acpi/battery.h uses 'struct power_supply *', but fails to
include/create any declaration of the type. Include linux/
power_supply.h to fix that.Signed-off-by: Barnabás Pőcze
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki
22 Feb, 2018
1 commit
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This is a patch that implements a generic hooking API for the
generic ACPI battery driver.With this new generic API, drivers can expose platform specific
behaviour via sysfs attributes in /sys/class/power_supply/BATn/
in a generic way.A perfect example of the need for this API are Lenovo ThinkPads.
Lenovo ThinkPads have a ACPI extension that allows the setting of
start and stop charge thresholds in the EC and battery firmware
via ACPI. The thinkpad_acpi module can use this API to expose
sysfs attributes that it controls inside the ACPI battery driver
sysfs tree, under /sys/class/power_supply/BATN/.The file drivers/acpi/battery.h has been moved to
include/acpi/battery.h and the includes inside ac.c, sbs.c, and
battery.c have been adjusted to reflect that.When drivers hooks into the API, the API calls add_battery() for
each battery in the system that passes it a acpi_battery
struct. Then, the drivers can use device_create_file() to create
new sysfs attributes with that struct and identify the batteries
for per-battery attributes.Signed-off-by: Ognjen Galic
Signed-off-by: Rafael J. Wysocki
