lkml.org 
[lkml]   [2013]   [Nov]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH] usb: hub: Use correct reset for wedged USB3 devices that are NOTATTACHED
    On Wed, Nov 06, 2013 at 12:27:21PM -0800, Julius Werner wrote:
    > This patch adds a check for USB_STATE_NOTATTACHED to the
    > hub_port_warm_reset_required() workaround for ports that end up in
    > Compliance Mode in hub_events() when trying to decide which reset
    > function to use. Trying to call usb_reset_device() with a NOTATTACHED
    > device will just fail and leave the port broken.

    Who makes those calls, drivers? Any specific ones that you know need to
    be fixed?

    > Also bumped the messages about this kind of reset failure from dev_dbg()
    > to dev_warn() to make it easier to notice, since calling that function
    > with a NOTATTACHED device would almost always be a bug

    But what can a user do if those messages show up?

    thanks,

    greg k-h


    \
     
     \ /
      Last update: 2013-11-06 22:01    [W:9.524 / U:0.052 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site