How to regist a callback of control pad button event

[zealot0630]

It seem that call sceCtrlReadBufferPositive is insufficient and waste a lot of battery.
It is better to regist a callback function like sceKernelRegisterExitCallback, and once pad button is pressed, kernel calls the function which registed before

[hlide]

It seem that call sceCtrlReadBufferPositive is insufficient and waste a lot of battery.
It is better to regist a callback function like sceKernelRegisterExitCallback, and once pad button is pressed, kernel calls the function which registed before

oh i see your point you would like to catch a new buttons state when there IS a change. I presume this would only happen at each vsync since pad is read at this pace and so a callback would be called only at a VSYNC pace but only if there is a real change.

I dunno if we can register and use those callbacks in user mode but there is something which sounds promising in pspsdk\ctrl\pspctrl_kernel.h :

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#define sceCtrlSetButtonMasks sceCtrl_driver_7CA723DC
#define sceCtrlGetButtonMask sceCtrl_driver_5E77BC8A
#define sceCtrlRegisterButtonCallback sceCtrl_driver_5C56C779

Interesting, without your post, i would have never seen thoses functions.

thx for your post.

[hlide]

However i'm still unsure whether that callback system can handle analogic pad.

[hlide]

a question for MrBrown or Tyranid :

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/**
 * Get button mask mode
 *
 * @mask - The bitmask to check
 *
 * @return 0 no setting, 1 set in button mask, 2 set in button set
 */

when you pass the "bitmask" as argument, does it mean a bitmask compatible with the enumerated values of PspCtrlButtons with the only difference that only one bit in bitmask should be set ? this isn't the bit number, is this ?

Are there any other sceCtrl_driver_XXXXX functions not dicovered ? so far as I can guess, we cannot handle analogic pad with this callback system.

[adrahil]

1) mask is of form "BUTTON1 | BUTTON2 | BUTTON3 ...." with standard key names like in the .Buttons
2)everything has more or less been discovered, afaik.