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API referenceEmulation APIFunctions

hololink::emulation::GPIO_set_direction

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int hololink::emulation::GPIO_set_direction(
    void *ctxt,
    struct AddressValuePair *addr_vals,
    int max_count
)

Set the direction of the GPIO.

Returns: The number of address-value pairs set.

Parameters

ctxt
void *

The context pointer.

addr_vals
struct AddressValuePair *

The address-value pair. Each bit in values corresponds to direction of the GPIO pin at the address. Each address supports 32 pins with the 0 pin at GPIO_DIRECTION_BASE_REGISTER + 0 and the 31 pin at GPIO_DIRECTION_BASE_REGISTER + 31.

max_count
int

The maximum number of address-value pairs to set.