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On Wed, 27 Oct 2004 11:23:46 +0200
cube@cubidou.net wrote:

> Have a look at the probe code in viaide.c.  What it does is the following.
> First, it detects a VIA IDE device.  There are only 3 PCI product IDs for
> that:  PCI_PRODUCT_VIATECH_VT82C586_IDE, PCI_PRODUCT_VIATECH_VT82C586A_IDE
> and PCI_PRODUCT_VIATECH_VT8237_SATA.
> 
> The actual detection happens in via_chip_map, where the actual LPC/ISA
> bridge is scanned to know what is the actual device.  That is only at that
> point that viaide(4) knows it deals with a VT8235 device.
> 
> So pcictl(8) is right, as it only shows the PCI product ID, which is the
> same in both case.
> 
> Looking closer, it appears that chip is truly always the same, except
> for the UDMA level it is capable of, and that's why the driver looks at
> the bridge IDs.

After talking with Quentin on IRC, the thread is closed heh.

Finally I know that these southbridges (VT82C686B and VT8235) are
using the same IDE controller, which is reported correctly by pcictl(8).

Thanks Quentin :)

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