> 00:1c.2 SMBus: PA Semi, Inc PWRficient SMBus Controller (rev 01) > Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR- FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Interrupt: pin A routed to IRQ 72 > Region 0: I/O ports at 7f0280 [size=64] > > SMbus Controllers > The CPU provides 3 SMbus controllers, and these are used to connect up > various SMbus and I2C devices. The number of SMbusses is expanded to 7 via a > 1:4 multiplexer on SMbus 1.
Can you send the output of 'i2cdetect -l' (you need i2c-tools for that). I assume the multiplexed bus occupies the bus number the above bus 1c.2 wants to have. This was present all the time, my recent change only made it visible.
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