Detect if SPI or I2C is correct

[Potemkinkuliss]

I am using SPI and I2C devices in my project and provide a scan that first checks if SPI devices are present and afterwards tries to search I2C. Since the number of supported devices starts to increase, scanning all possible SPI and I2C devices takes a considerable amount of time. So I wonder, if there is a way to quickly check if I2C or SPI is configured.

I am using a FT232H so my first idea was to set D1 as Input and D2 as output and check if D1 reads high when D2 is set high or since I am always using clk-stretch do the same with D7 and D0.
Can you think of a better way?

[Potemkinkuliss]

In case someone is interested:

    def checkDataWiring(self):
        # check D1 to D2
        gpio = GpioAsyncController()
        gpio.configure(self.getUrl(), 0b10000010, initial=0)
        pin_state = gpio.read()
        gpio.write(2)
        change = gpio.read() - pin_state
        gpio.write(0)
        gpio.close()
        return change == 6

    def checkClkStretchWiring(self):
        # check D0 to D7
        gpio = GpioAsyncController()
        gpio.configure(self.getUrl(), 0b10000010, initial=0)
        gpio.write(0)
        pin_state = gpio.read()
        gpio.write(0b10000000)
        change = gpio.read() - pin_state
        gpio.write(0)
        gpio.close()
        return change == 129

    def checkI2cWiring(self):
        return self.checkDataWiring() and self.checkClkStretchWiring()