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TDA4VM: [TDA4] How to control camera gpio in vision app?

Part Number: TDA4VM

Hi, Experts :

as title description.

I trace some gpio pinmux code in vision app, show as below :

ti-processor-sdk-rtos-j721e-evm-07_03_00_07\vision_apps\utils\misc\src\app_pinmux.c

static pinmuxPerCfg_t gCamera_gpioPinCfg[] =
{
    /* MyMCU_OSPI0 -> WKUP_GPIO0_16 -> E20 */
    {
        PIN_MCU_OSPI0_CLK, PIN_MODE(7) | \
        ((PIN_PULL_DISABLE | PIN_INPUT_ENABLE) & (~PIN_PULL_DIRECTION))
    },
    /* MyWKUP_GPIO0 -> WKUP_GPIO0_17 -> C21 */
    {
        PIN_MCU_OSPI0_LBCLKO, PIN_MODE(7) | \
        ((PIN_PULL_DISABLE | PIN_INPUT_ENABLE) & (~PIN_PULL_DIRECTION))
    },
    /* MyMCU_OSPI0 -> WKUP_GPIO0_18 -> D21 */
    {
        PIN_MCU_OSPI0_DQS, PIN_MODE(7) | \
        ((PIN_PULL_DISABLE | PIN_INPUT_ENABLE) & (~PIN_PULL_DIRECTION))
    },
    /* MyMCU_OSPI0 -> WKUP_GPIO0_19 -> D20 */
    {
        PIN_MCU_OSPI0_D0, PIN_MODE(7) | \
        ((PIN_PULL_DISABLE | PIN_INPUT_ENABLE) & (~PIN_PULL_DIRECTION))
    },
    /* MyMCU_OSPI0 -> WKUP_GPIO0_27 -> F19 */
    {
        PIN_MCU_OSPI0_CSN0, PIN_MODE(7) | \
        ((PIN_PULL_DISABLE | PIN_INPUT_ENABLE) & (~PIN_PULL_DIRECTION))
    },
    /* MyMCU_OSPI1 -> WKUP_GPIO0_36 -> C22 */
    {
        PIN_MCU_OSPI1_CSN0, PIN_MODE(7) | \
        ((PIN_PULL_DISABLE | PIN_INPUT_ENABLE) & (~PIN_PULL_DIRECTION))
    },
    {PINMUX_END}
};

follow this code, we make sure these gpio pin is defined!

WKUP_GPIO0_16, 
WKUP_GPIO0_17,
WKUP_GPIO0_18,
WKUP_GPIO0_19,
WKUP_GPIO0_27,
WKUP_GPIO0_36
but my question is : 
How to control these gpio in vision app?
Because I do not find any gpio toggle hi or low status in code
Any comment?
Many Thanks
Gibbs