JHCTech KMDA-3602 User Manual page 60

/*==========================================================================
1 * int smbus_16pin_gpio_input(int port);
2 * function description：read the motherboard GPIO input level
3 * parameter description：
Return value：return a byte (8 bit), each bit of the 8 bit corresponding to the level state of a GPIO
pin
Return value
GPIO pin
parameter：port fill in subcard GPIO number, 1 or 2
Note: The read value is valid only when the pin is in input mode
4 * creation date：
5*========================================================================*/
Bit7 Bit6 Bit5
PIN8 PIN7 PIN6
Bit4 Bit3 Bit2
PIN5 PIN4 PIN3
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User's Manual
Bit1 Bit0
PIN2 PIN1