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https://github.com/brain-hackers/u-boot-brain
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e236519b73
As best I can tell, there's no difference between bulk and interrupt transfers in terms of how the HW should be programmed, at least given that we're executing one transaction at a time rather than scheduling them into frames for maximum throughput. This patch ends up sharing the toggle bit state between bulk and interrupt transfers on a particular EP. However I believe this is fine; AFAIK a given EP either uses bulk or interrupt transfers and doesn't mix them. This patch doesn't do anything with the "interval" parameter for interrupt transfers, but then most other USB controller drivers in U-Boot don't either. It turns out that one of my keyboards is happy to work using control transfers but the other only gives non-zero "HID reports" via interrupt transfers. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> |
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