On Wed, Oct 27, 2010 at 11:13:27 -0400, Emilio G. Cota wrote: > On Wed, Oct 27, 2010 at 10:41:18 +0100, Martyn Welch wrote: > > On 26/10/10 02:10, Emilio G. Cota wrote: > > > From: Emilio G. Cota <cota@xxxxxxxxx> > > > > > > In a configuration with several bridges, each bridge is > > > assigned a certain bus number depending on the order in which > > > vme_register_bridge is called. This can complicate multi-bridge > > > installations because the eventual bus numbers will depend > > > on the order the bridges were loaded. > > > > > > The appended allows bridges to register with a bus number of > > > their choice, while keeping the previous 'first come, first > > > served' behaviour as the default. > > > > > > > I can't see where this is being used. > > Each driver's .probe is fed with bus_number and slot_number. > Normally the driver will check that pair against what it received > through modparams and act accordingly. > > For this to be reliable bus numbering should be consistent on > a given system, i.e. it should be possible to always allocate > the same bus number to a given bus. Otherwise, depending on > which bridge is installed first, we'd get different bus numbers > assigned. > > Does that make it clearer now? > > > I assume this is a part of future changes you wish to make? > > AFAICT it affects the current model. Martyn, Have you had time to re-check this one? Thanks Emilio _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
