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power_supply: Add a charge_type property, and use it for olpc driver

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This adds a new sysfs file called 'charge_type' which displays the
type of charging (unknown, n/a, trickle charge, or fast charging).

This allows things like battery diagnostics to determine what the
battery/EC is doing without resorting to changing the 'status' sysfs
output.

Signed-off-by: Andres Salomon <dilinger@collabora.co.uk>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
This commit is contained in:
Andres Salomon
2009-07-02 09:45:18 -04:00
committed by Anton Vorontsov
parent 144bbeaedc
commit ee8076ed3e
4 changed files with 28 additions and 0 deletions
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Documentation/power/power_supply_class.txt
+5
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@@ -76,6 +76,11 @@ STATUS - this attribute represents operating status (charging, full,
discharging (i.e. powering a load), etc.). This corresponds to
BATTERY_STATUS_* values, as defined in battery.h.
CHARGE_TYPE - batteries can typically charge at different rates.
This defines trickle and fast charges. For batteries that
are already charged or discharging, 'n/a' can be displayed (or
'unknown', if the status is not known).
HEALTH - represents health of the battery, values corresponds to
POWER_SUPPLY_HEALTH_*, defined in battery.h.