PMICGetEcResetAsync

Syntax

#include <revolution/pmic.h>

// Echo Canceller Reset State
#define PMIC_EC_RESET_ON             0x0001
#define PMIC_EC_RESET_OFF            0x0000

typedef void (*PMICCallback)(PMIC_ERR result, void* arg);

PMIC_ERR PMICGetEcResetAsync(u16* state, PMICCallback cb, void* arg);

Arguments

`state`	Location to store the echo canceler's reset state (ON/OFF), which is received from the Wii Speak.
`cb`	Callback function that will send notification of the execution results of this function.
`arg`	Passed as the second argument of the callback function above.

Return Values

Returns one of the following.

`PMIC_ERR_OK`	The function has been called normally.
`PMIC_ERR_INVALID_ARGUMENTS`	The correct argument was not passed.
`PMIC_ERR_INVALID_STATE`	The Wii Speak is not open.
`PMIC_ERR_BUSY`	Cannot register the command. Call the function again.
`PMIC_ERR_FATAL`	A fatal error has occurred.

Description

Asynchronously gets the reset state (ON/OFF) for the Wii Speak's echo canceler.

This function stores the reset state at the address specified by its first argument, state. A value of PMIC_EC_RESET_ON is stored if resets are enabled, and PMIC_EC_RESET_OFF is stored if resets are disabled. The Wii Speak's echo canceler runs normally when the state is PMIC_EC_RESET_OFF.

One of the following is passed to result, the callback function's first argument.

`PMIC_ERR_OK`	The reset state was obtained successfully.
`PMIC_ERR_NO_DEVICE`	The Wii Speak has been unplugged.
`PMIC_ERR_INVALID_STATE`	The Wii Speak is not open. (Confirm that the Wii Speak cable is inserted in the USB port.)
`PMIC_ERR_USB_ERROR`	An error occurred in USB communications. Call the function again.
`PMIC_ERR_FATAL`	A fatal error has occurred.

Revision History

2008/12/22 Standardized terminology.
2008/10/24 Revised Description.
2008/10/23 Revised Description.
2008/10/22 Initial version.