--- On Tue, 8/17/10, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: I wasn't > aware that memory cards could generate wakeup events. Almost all MMC/SD hardware can generate reliable insert/remove events, in my experience. So MMC/SD drivers I've modified tend to treat them as wake events ... userspace can respond without polling constantly "did it change yet, huh, did it???" Unfortunately Pierre spent a lot of time hard-wiring UNSAFE_RESUME assumptions into the MMC core, so lots of that stuff is currently (and needlessly) broken. And of more experimental interest, something I don't recall being discussed here: I/O completions as wake events. Start an I/O, enter low power state, and wake when it completes. Easily done on lots of embedded hardware.. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
