2.6.15: lm90 0-004c: Register 0x13 read failed (-1)

[Andrey Borzenkov]

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Vanilla 2.6.15 on Toshiba Portege 4000. I get constant messages in dmesg:

i2c_adapter i2c-0: Error: command never completed
lm90 0-004c: Register 0x1 read failed (-1)
i2c_adapter i2c-0: Error: command never completed
lm90 0-004c: Register 0x14 read failed (-1)
i2c_adapter i2c-0: Error: command never completed
lm90 0-004c: Register 0x8 read failed (-1)
i2c_adapter i2c-0: Error: command never completed
lm90 0-004c: Register 0x0 read failed (-1)

for quite a number of registers. Apparently I can read sensors just fine still 
I am uneasy seeing those.

{pts/1}% lspci
00:00.0 Host bridge: ALi Corporation M1644/M1644T Northbridge+Trident (rev 01)
00:01.0 PCI bridge: ALi Corporation PCI to AGP Controller
00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:04.0 IDE interface: ALi Corporation M5229 IDE (rev c3)
00:06.0 Multimedia audio controller: ALi Corporation M5451 PCI AC-Link 
Controller Audio Device (rev 01)
00:07.0 ISA bridge: ALi Corporation M1533 PCI to ISA Bridge [Aladdin IV]
00:08.0 Bridge: ALi Corporation M7101 Power Management Controller [PMU]
00:0a.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100] 
(rev 08)
00:10.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller 
(rev 01)
00:11.0 CardBus bridge: Toshiba America Info Systems ToPIC100 PCI to Cardbus 
Bridge with ZV Support (rev 32)
00:11.1 CardBus bridge: Toshiba America Info Systems ToPIC100 PCI to Cardbus 
Bridge with ZV Support (rev 32)
00:12.0 System peripheral: Toshiba America Info Systems SD TypA Controller 
(rev 03)
01:00.0 VGA compatible controller: Trident Microsystems CyberBlade XPAi1 (rev 
82)
{pts/1}% sensors
eeprom-i2c-0-50
Adapter: SMBus ALI1535 adapter at ef00
Memory type:            SDR SDRAM DIMM
Memory size (MB):       256

adm1032-i2c-0-4c
Adapter: SMBus ALI1535 adapter at ef00
M/B Temp:    +43ÂC  (low  =   -65ÂC, high =  +127ÂC)
CPU Temp:  +47.6ÂC  (low  = +43.0ÂC, high = +51.0ÂC)   ALARM
M/B Crit:   +127ÂC  (hyst =  +122ÂC)
CPU Crit:   +100ÂC  (hyst =   +95ÂC)


- -andrey
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