On Wednesday 09 November 2011 19:03:58 Ilya Yanok wrote: > In our setup (OMAP3 EHCI host, keyboard, mouse mass storage and BT > dongle devices connected via several hubs) keyboard fails to initialize > during the bus scan (stalled endpoint while get_descriptor/64) and after > that keyboard is unusable (even in Linux) until power off/on. > > Increasing the delay after port reset from 200ms to 260ms solves this > problem.
ugh. this doesn't sound like the right way to fix things. looks like Linux has added a dynamic polling state that automatically deals with broken devices. look at its hub_port_debounce. seems like we should implement something like that instead of delaying longer and longer and making the situation needlessly worse for most systems. -mike
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