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board_button_irq: Button IRQ logic no longer returns the xcpt_t oldhandler. There value is useless and dangerous after the recent changes to interrupt argument passing.

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This commit is contained in:
Gregory Nutt
2017-03-02 14:37:22 -06:00
parent 4a4636c8a1
commit 4c82827ab1
65 changed files with 335 additions and 488 deletions
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include/nuttx/board.h
+1 -3
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@@ -603,8 +603,6 @@ uint8_t board_buttons(void);
* This function may be called to register an interrupt handler that will
* be called when a button is depressed or released. The ID value is a
* button enumeration value that uniquely identifies a button resource.
* The previous interrupt handler address is returned (so that it may
* restored, if so desired).
*
* NOTE: This interface may or may not be supported by board-specific
* logic. If the board supports any button interfaces, then
@@ -614,7 +612,7 @@ uint8_t board_buttons(void);
****************************************************************************/
#ifdef CONFIG_ARCH_IRQBUTTONS
xcpt_t board_button_irq(int id, xcpt_t irqhandler, FAR void *arg);
int board_button_irq(int id, xcpt_t irqhandler, FAR void *arg);
#endif
/****************************************************************************