Function gpio_port_get_raw

pub unsafe extern "C" fn gpio_port_get_raw(
    port: *const device,
    value: *mut u32,
) -> i32

@brief Get physical level of all input pins in a port.

A low physical level on the pin will be interpreted as value 0. A high physical level will be interpreted as value 1. This function ignores GPIO_ACTIVE_LOW flag.

Value of a pin with index n will be represented by bit n in the returned port value.

@param port Pointer to the device structure for the driver instance. @param value Pointer to a variable where pin values will be stored.

@retval 0 If successful. @retval -EIO I/O error when accessing an external GPIO chip. @retval -EWOULDBLOCK if operation would block.