Re: 2.4.2 yenta_socket problems on ThinkPad 240

[Alan Cox]

> Cardbus shouldn't be touching the bus stuff at all, BUT there may be
> strange hardware that doesn't like the following:
> 
>         config_writeb(socket, PCI_SEC_LATENCY_TIMER, 176); 
> 	config_writeb(socket, PCI_PRIMARY_BUS, dev->bus->number);
>         config_writeb(socket, PCI_SECONDARY_BUS, dev->subordinate->number);
>         config_writeb(socket, PCI_SUBORDINATE_BUS, dev->subordinate->number);
> 
> I have heard rumors of PCI devices that want all these set with a single
> double-word write.

That would be consistent with the behaviour in the bugzilla report - it went
from 0,0,0,1 to  176,0,0,0...

Alan