From: Tom Lyon <pugs@cisco.com>
To: rjw@sisk.pl, linux-pm@lists.linux-foundation.org
Subject: question about driver's runtime_suspend
Date: Fri, 3 Sep 2010 15:20:19 -0700 [thread overview]
Message-ID: <201009031520.19452.pugs@cisco.com> (raw)
Hi. I am looking at supporting the new PM stuff in my VFIO "driver" - which
allows user level drivers for PCI* devices.
When runtime_suspend is invoked, is it allowed to sleep while determining
whether the device can be suspended? If not, does returning -EAGAIN mean that
it will be called again after some interval?
I would like to notify the user level that a suspend is desired, and then wait
for it to tell the vfio driver whether or not the suspend is OK.
Thanks for any help.
next reply other threads:[~2010-09-03 22:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-03 22:20 Tom Lyon [this message]
2010-09-04 1:37 ` question about driver's runtime_suspend Alan Stern
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