Need assistance with enabling the SMBus on an Intel 855PM 82801DB

Bradley Chapman kakadu at gmail.com
Thu Apr 14 16:15:40 CEST 2005


I've been trying to figure out how to enable the SMBus on my Sager
NP3760 (aka a Clevo M375E), and after doing some research I have found
that the Intel 82801DB chip does have an SMBus, but that my laptop
BIOS has most likely disabled it.

I found the p4b_smbus.c module after reading
http://archives.andrew.net.au/lm-sensors/msg26375.html and the
remainder of said thread, but I haven't been able to make p4b_smbus.c
compile on a 2.6.10 kernel.

Relevant bits of lspci:

0000:00:00.0 0600: 8086:3340 (rev 21)
0000:00:01.0 0604: 8086:3341 (rev 21)
0000:00:1d.0 0c03: 8086:24c2 (rev 03)
0000:00:1d.1 0c03: 8086:24c4 (rev 03)
0000:00:1d.2 0c03: 8086:24c7 (rev 03)
0000:00:1d.7 0c03: 8086:24cd (rev 03)
0000:00:1e.0 0604: 8086:2448 (rev 83)
0000:00:1f.0 0601: 8086:24cc (rev 03)
0000:00:1f.1 0101: 8086:24ca (rev 03)
0000:00:1f.5 0401: 8086:24c5 (rev 03)
0000:00:1f.6 0703: 8086:24c6 (rev 03)
0000:01:00.0 0300: 1002:4e50
0000:02:00.0 0200: 10ec:8169 (rev 10)
0000:02:02.0 0c00: 104c:8026
0000:02:03.0 0280: 8086:4220 (rev 05)
0000:02:09.0 0607: 104c:ac54 (rev 01)
0000:02:09.1 0607: 104c:ac54 (rev 01)
0000:02:09.2 0880: 104c:8201 (rev 01)

0000:00:00.0 Host bridge: Intel Corp. 82855PM Processor to I/O
Controller (rev 21)
0000:00:01.0 PCI bridge: Intel Corp. 82855PM Processor to AGP
Controller (rev 21)
0000:00:1d.0 USB Controller: Intel Corp. 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 03)
0000:00:1d.1 USB Controller: Intel Corp. 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 03)
0000:00:1d.2 USB Controller: Intel Corp. 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 03)
0000:00:1d.7 USB Controller: Intel Corp. 82801DB/DBM (ICH4/ICH4-M) USB
2.0 EHCI Controller (rev 03)
0000:00:1e.0 PCI bridge: Intel Corp. 82801 PCI Bridge (rev 83)
0000:00:1f.0 ISA bridge: Intel Corp. 82801DBM LPC Interface Controller (rev 03)
0000:00:1f.1 IDE interface: Intel Corp. 82801DBM (ICH4) Ultra ATA
Storage Controller (rev 03)
0000:00:1f.5 Multimedia audio controller: Intel Corp. 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
0000:00:1f.6 Modem: Intel Corp. 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
AC'97 Modem Controller (rev 03)
0000:01:00.0 VGA compatible controller: ATI Technologies Inc RV350
[Mobility Radeon 9600 M10]
0000:02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8169 Gigabit Ethernet (rev 10)
0000:02:02.0 FireWire (IEEE 1394): Texas Instruments TSB43AB21
IEEE-1394a-2000 Controller (PHY/Link)
0000:02:03.0 Network controller: Intel Corp. PRO/Wireless 2200BG (rev 05)
0000:02:09.0 CardBus bridge: Texas Instruments: Unknown device ac54 (rev 01)
0000:02:09.1 CardBus bridge: Texas Instruments: Unknown device ac54 (rev 01)
0000:02:09.2 System peripheral: Texas Instruments: Unknown device 8201 (rev 01)

Does anyone else with a Clevo M375E know if I will find any
interesting chips on the 82801DB's SMBus if I ever manage to enable
it?

TIA,

Brad
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