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    SubjectRe: [PATCH 1/3] UEAGLE : be suspend friendly
    Date
    Hi Pavel,

    > > Signed-off-by: matthieu castet <castet.matthieu@free.fr>
    > > Index: linux/drivers/usb/atm/ueagle-atm.c
    > > ===================================================================
    > > --- linux.orig/drivers/usb/atm/ueagle-atm.c 2006-09-22 21:39:56.000000000 +0200
    > > +++ linux/drivers/usb/atm/ueagle-atm.c 2006-09-22 21:40:45.000000000 +0200
    > > @@ -1177,6 +1177,9 @@
    > > ret = uea_stat(sc);
    > > if (ret != -EAGAIN)
    > > msleep(1000);
    > > + if (try_to_freeze())
    > > + uea_err(INS_TO_USBDEV(sc), "suspend/resume not supported, "
    > > + "please unplug/replug your modem\n");
    >
    > Plug/unplug should be easy enough to simulate from usb driver, no?

    if a USB driver doesn't define suspend/resume methods, then the core simply
    unplugs it on suspend, and replugs on resume (IIRC). Maybe Matthieu is trying
    for something better - hopefully he will explain. Since this is a modem, it
    would be nice if the internet connection sprang back to life on resume, which
    requires more work than unplug/plug. I've no idea what needs to be done to achieve
    this. These modems use the ATM networking layer by the way, I don't know if that
    makes things easier or harder.

    Ciao,

    Duncan.
    -
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