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    SubjectRe: [PATCH v6 7/8, needs improvement] hid: add suspend/resume hooks for hid drivers
    On Sun, 11 Apr 2010, Bruno Prémont wrote:

    > > > As far as I understand the code, in auto-suspend case if the driver
    > > > sends commands to the device it will have to call usbhid_wait_io().
    > > > Please correct me if I'm wrong!
    > >
    > > It's not needed. There is a queuing mechanism in place on
    > > 'resumption_waker' workqueue.
    >
    > So the driver is not allowed to ask the device to do something
    > at auto-suspend time (as that would abort the auto-suspension).

    What do you mean by "is not allowed" exactly?

    Yes, it will wake the device up from auto-suspension. However, that's
    usually what you want to happen, is there is anything you need to dispatch
    to the device, isn't it?

    What exactly is the situation you are trying to handle?

    Thanks,

    --
    Jiri Kosina
    SUSE Labs, Novell Inc.
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