Re: usbtouchscreen - runtime PM patches testing [Was: [PATCH 1/2] Input: usbtouchscreen - add support for ET&T TC4UM touchscreen controller]

["Petr Štetiar" <ynezz@true.cz>]

Oliver Neukum <oneukum@suse.de> [2010-06-30 15:04:51]:

Hi,

> 1. indeed a few suspend & resume cycles

it seems to work, although I've tested it with the suspend to RAM only with 
'echo devices > /sys/power/pm_test', the complete suspend doesn't work on my
laptop. I hope it's enough. If the whole cycle is necessary I can try to test
it on 

I was testing it with 'cat /dev/input/touchscreen | od -x' and without your
patches the device dissapeared after the resume cycle. With your patches it was
still working fine after 5-6 suspend and resume cycles.

> 2. to know what happens if you switch runtime power management on with
> echo "auto" >/sys/bus/usb/devices/$DEVICE/power/level

Sorry my ignorance, but what should happen? I don't follow PM stuff that much.
I've enabled auto and the touchscreen is still working and nothing has
changed, is it ok?

-- ynezz