http://bugzilla.kernel.org/show_bug.cgi?id=9588
Summary: Smart Battery not recognized by sbs module
Product: ACPI
Version: 2.5
KernelVersion: 2.6.24-rc5
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Battery
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
Distribution: debian unstable
Hardware Environment: Raon Digital Everun (AMD Geode UMPC)
Software Environment:
Problem Description: Smart Battery not recognized by driver, even though i2c
tools show it to be there
Sensors-detect detects a Smart Battery, and i2cdetect shows why:
# i2cdetect -y 0
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- 0b -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
I believe that the device at 0x0b is a smart battery because (1) the
manufacturer told me the device had a smart battery on SMBus, (2) I can dump
its contents and watch values within the register change in ways that make it
really look like a battery. In particular, the stuff at 0x0c-0c0f looks
like battery voltage or charge level (not sure of the scale)... it goes
up when AC plugged in, down when discharging the battery. 0x2f looks like
it represents the AC adapter state somehow; it takes different values when
the AC is plugged in or not.
# i2cdump -y 0 0x0b
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 00 e6 0a 01 00 ff ff 01 fd 5b 04 04 02 62 44 18 .???...??[???bD?
10: 40 ff ff 58 00 38 a7 1b fc 5c 31 fb 08 XX XX XX @..X.8???\1??XXX
20: 0b 07 04 0d XX XX XX XX XX XX XX XX XX XX XX b0 ????XXXXXXXXXXX?
30: XX XX XX XX XX XX XX XX XX XX XX XX 00 1d 22 1d XXXXXXXXXXXX.?"?
40: XX XX XX XX XX de XX XX XX XX XX XX XX XX XX XX XXXXX?XXXXXXXXXX
50: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
60: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
70: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
80: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
90: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
a0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
b0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
c0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
d0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
e0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
f0: XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XXXXXXXXXXXXXXXX
However, I can load the sbs and sbshc drivers and nothing happens (no battery
information in /sys/ or /proc/ ACPI trees, only an AC adapter which claims to
be always on, which is what my DSDT tells ACPI to say... see
http://bugzilla.kernel.org/show_bug.cgi?id=9137)
Any help appreciated!
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