[lkml]   [2011]   [Dec]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: loading firmware while usermodehelper disabled.
Am Samstag, 31. Dezember 2011, 16:33:12 schrieb Alan Stern:

> Nothing has changed in the USB layer -- it has always been true that
> devices could be reset during a suspend/resume cycle. This isn't a
> matter of how the stack is written or anything like that; some
> motherboards simply do not provide suspend power to their USB
> controllers. Or the firmware reinitializes the controllers and
> attached devices during resume, forcing Linux's USB core to reset
> every device on the affected buses.
> When it comes to suspend/resume, there are almost no guarantees. :-(

We are definitely going through do_unbind_rebind(). But I don't think
it matters why we got there. We seem to be calling probe() too early.
And we need to guarantee that a driver can request firmware in probe()

So something has changed in the resume code path further up.


 \ /
  Last update: 2011-12-31 17:01    [W:0.067 / U:5.032 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site