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Parse battery status of HID++ 1.0 devices 

This applies to K800 but it seems also to apply to M510. The numbers are based
on the HID++ 2.0 spec that state the following for GetBatteryCapability:

    If number of levels < 10 or if mileage is disabled then report are
    mapped to 4 levels this way.

    0%->10%     critical
    11%->30%    low
    31%->80%    good
    81%->100%   full

    i.e. to report battery low, FW send 25%, to report battery good, FW send 50%.
This commit is contained in:
Peter Wu 2013-04-27 11:54:53 +02:00
parent 25cbd55841
commit 438c501fae
1 changed files with 10 additions and 2 deletions
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12
lib/logitech/unifying_receiver/hidpp10.py
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@ -94,8 +94,16 @@ def get_battery(device):
reply = get_register(device, 'battery_status', 0x07)
if reply:
battery_status = ord(reply[:1])
_log.info("%s: battery status %02X", device, battery_status)
level = ord(reply[:1])
battery_status = ord(reply[2:3])
charge = (90 if level == 7 # full
else 50 if level == 5 # good
else 20 if level == 3 # low
else 5 if level == 1 # critical
else 0 ) # wtf?
status = ('charging' if battery_status == 0x25
else 'discharging')
return charge, status
def get_serial(device):