* PM QOS flags
@ 2012-11-14 8:22 Oliver Neukum
2012-11-21 0:55 ` Rafael J. Wysocki
0 siblings, 1 reply; 2+ messages in thread
From: Oliver Neukum @ 2012-11-14 8:22 UTC (permalink / raw)
To: Rafael J. Wysocki, linux-pm
Hi,
it seems to me that we are missing some flags. I would propose
PM_QOS_FLAG_NO_EXTERNAL_EFFECT
in some cases going to powersave has externally visible effects
modems hang up, LEDs on keyboards extinguish, screens blank
PM_QOS_FLAG_NO_HOTPLUG_DETECT
hotplug is not detected while in powersave
PM_QOS_FLAG_NO_MEDIUM_CHANGE
the device does not detect medium change events in powersave
USB storage devices are prime candidates for this
Regards
Oliver
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: PM QOS flags
2012-11-14 8:22 PM QOS flags Oliver Neukum
@ 2012-11-21 0:55 ` Rafael J. Wysocki
0 siblings, 0 replies; 2+ messages in thread
From: Rafael J. Wysocki @ 2012-11-21 0:55 UTC (permalink / raw)
To: Oliver Neukum; +Cc: linux-pm
Hi,
On Wednesday, November 14, 2012 09:22:13 AM Oliver Neukum wrote:
> Hi,
>
> it seems to me that we are missing some flags. I would propose
>
> PM_QOS_FLAG_NO_EXTERNAL_EFFECT
> in some cases going to powersave has externally visible effects
> modems hang up, LEDs on keyboards extinguish, screens blank
>
> PM_QOS_FLAG_NO_HOTPLUG_DETECT
> hotplug is not detected while in powersave
>
> PM_QOS_FLAG_NO_MEDIUM_CHANGE
> the device does not detect medium change events in powersave
> USB storage devices are prime candidates for this
I'm fine with these, but please add them along with the users, so that
it is clear how you're planning to utilize them.
Thanks,
Rafael
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
^ permalink raw reply [flat|nested] 2+ messages in thread
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