[ltp] What does i2c_i801 do on a Thinkpad x60s

Micha Feigin linux-thinkpad@linux-thinkpad.org
Tue, 3 Feb 2009 01:02:34 +0200


On Mon, 2 Feb 2009 22:16:35 +0100
Holger Levsen <holger@layer-acht.org> wrote:

> Hi Henrique,
> 
> On Montag, 2. Februar 2009, Henrique de Moraes Holschuh wrote:
> > > Are there any (newer) thinkpad models were i2c* is useful?
> > I wouldn't know, since all I have is a T43.  But I doubt it.
> 
> I dont know much about i2c, maybe you know how can i find out?
> 
> 
> regards,
> 	Holger
> 
> 

Looking at the output of lspci -vv on my t61:

00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
	Subsystem: Lenovo ThinkPad T61
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin A routed to IRQ 23
	Region 0: Memory at fe227400 (32-bit, non-prefetchable) [size=256]
	Region 4: I/O ports at 1c60 [size=32]
	Kernel driver in use: i801_smbus
	Kernel modules: i2c-i801


http://en.wikipedia.org/wiki/System_Management_Bus