On Wed, 3 Aug 2005, Olav Kongas wrote: > Hi, > > Since publishing the isp116x-hcd, a number of people have > had trouble getting it working. Part of this trouble has > been unavoidable, because the isp116x chips are mostly used > in embedded settings, where platform details must be > explicitly specified. This is in contrast with > initialization of PCI devices, for example. > > However, part of the trouble could be avoided by providing > less configuration options that people can set in their > platform setup code. I have learned that people don't care > much about the ability to precisely control the device, they > just want the damn thing working. Now I am considering, > which configuration options could be dropped. > > One of the things I am planning is to support only one root > hub port powering mode. There exist three: > > - always powered > - ganged switching (there are max. 2 ports on isp116x) > - per-port power switching > > Would there be a reason to support any other mode than > per-port power switching too?
I don't see any reason to support other modes. Per-port power switching is the most flexible of the three. Why go out of your way to limit your capabilities? Many PCI-based host controllers are always powered. It's an annoying restriction; don't do it for isp116x unless you have a good reason. Alan Stern ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
