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    SubjectRe: cdc-acm driver hangs on poll() call - 2.6.27, works on 2.6.24
    Date
    Am Dienstag 21 April 2009 15:33:03 schrieb Maróy Ákos:
    > Oliver,
    >
    > > Does it happen with 2.6.29?
    >
    > haven't tried yet. I'm just upgrading to ubuntu 9.04, which has 2.6.28
    > built in.
    >
    > I also see cdc-acm fixes in the 2.6.28 Changelog, like:
    >
    > USB: gadget: cdc-acm deadlock fix

    That's gadget code. Your problem is on the host's side.

    >
    > > Could you get dmesg of 2.6.2(7/9) with CONFIG_USB_DEBUG and debug
    > > activated in drivers/usb/class/cdc-acm.c ?
    >
    > ok, let me upgrade to 2.6.28 first, and if the proplem still persists,
    > I'll compile 2.6.29 with the above settings manually.

    Thanks.

    Regards
    Oliver

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