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fylfot>Think about it logically for a sec. We currently have *two* USB stacks. One of those stacks (the DeviceFS/Castle one) is getting Isosynchronous transfer support added. Nothing else has changed - no extra fragmentation (isosync is *part* of the USB standard so should already have some representation in both stacks- even if the actual functionality was not implemented).

In response to hzn I was suggesting that we standardise on the stack that has the most capabilities (and I'd consider Isosync a *biggie*). That stack would be the Castle/DeviceFS one - if it were adopted by *all* vendors then we'd have *less* fragmentation. I am not sure how acchievable that is (are there commercial/business/licensing or technical issues that would prevent Castle's USB stack being deployed on an A9) but the suggestion I made is, I feel, more likely to yield the best overall results. Certainly more so than trying to implement an overarching abstraction layer that accomodates the existing two stacks - or going back to square one and coming up with a single unified (but different) third USB stack model.

 is a RISC OS UserAMS on 20/7/06 7:50PM
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