sceDisplayEnable & sceDisplaySetBrightness in User Mode

[n0w]

Hi!

I am writing a program that needs to keep the screen always turned on, but in a few seconds, if you don't press any button, psp's power management turns the brightness low and finally it turns the whole screen off.

I need to prevent psp doing this so i was thinking about something like:

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sceDisplayEnable();
sceDisplaySetBrightness(100, 0);
sceKernelDelayThread(400000);

at the main loop of my program in order to prevent lcd's backlight turning off.

The problem is (i think), that i can only do these calls from a user-level thread, and as far I know, sceDisplayEnable & SetBrightness functions can only be called from a kernel-level thread...

Any idea?

Thanks for reading ;-)

[unsigned int]

Just use

Code: Select all

scePowerTick(PSP_POWER_TICK_DISPLAY);

somewhere in your game loop to prevent the PSP from turning off the display.

[n0w]

Wow!! I wasn't know about that function... Do you know some site with something like a well documented sce api?

I was looking for information but i only have founded info about gu programming...

Thanks :)

[unsigned int]

There should be documentation about everything included in your PSPSDK installation (/usr/local/pspdev/psp/sdk/doc/ or c:\pspsdk\doc\pspsdk) or online http://psp.jim.sh/pspsdk-doc/ .

[n0w]

Ok man thanks!! ^^

[Torch]

PSP_POWER_TICK_DISPLAY

Will only reset the screen dim/off timer. The suspend timer will still fire.

[carl0sgs]

I use scePowerTick(0); and -i think- it prevents the psp from suspending and everything (like if you pressed a button.

Cheers