Messages in this thread | | | Date | Mon, 5 Nov 2012 13:23:50 +0100 | From | Jean Delvare <> | Subject | Re: [PATCH 2/3] spi / ACPI: add ACPI enumeration support |
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On Mon, 5 Nov 2012 14:02:19 +0200, Mika Westerberg wrote: > On Mon, Nov 05, 2012 at 11:56:39AM +0100, Mark Brown wrote: > > I've got practical systems where there are multiple buses physically > > connected, though in practice almost always only one is actually used at > > runtime when it's I2C and SPI there are some systems (usually with other > > buses) where you might want to use more than one bus. Not sure those > > buses will fit in here though. > > Yeah, I just went through DSDT table of one of our machines and found a > device that actually has two I2CSerialBus connectors (and those are to the > same controller). What I'm not sure is that is it used to select between > two different addresses or doest the device really have two physical I2C > connections.
Neither would make sense from a hardware perspective.
-- Jean Delvare
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