Re: [PATCH 8/9] Input: Block suspend while event queue is not empty.

Arve Hjønnevåg
2010-04-24T05:02:50Z

On Fri, Apr 23, 2010 at 2:08 PM, Dmitry Torokhov
<dmitry.torokhov@gmail.com> wrote:
> On Friday 23 April 2010 01:56:25 pm Randy Dunlap wrote:
>> On Thu, 22 Apr 2010 18:08:57 -0700 Arve Hjønnevåg wrote:
>> > Add an ioctl, EVIOCSSUSPENDBLOCK, to enable a suspend_blocker that will
>> > block suspend while the event queue is not empty. This allows userspace
>> > code to process input events while the device appears to be asleep.
>>
>> All new ioctls need to be added to Documentation/ioctl/ioctl-number.txt,
>> please.
>
> I do not see the reason for it to be in the kernel still. Have a process
> that listens to all input devices (or subset of them), once events stop
> coming initiate suspend.
>

I think the document added by the first patch explains this. The
solution you propose above will ignore a wakeup key pressed right
after user space decides to initiate suspend.

--
Arve Hjønnevåg