chvgpio_read
status = chvgpio_read(sc, CHV_GPIO_REG_IS);
reg1 = chvgpio_read(sc, PIN_CTL0(pin));
reg2 = chvgpio_read(sc, PIN_CTL1(pin));
reg = chvgpio_read(sc, PIN_CTL1(pin));
reg = chvgpio_read(sc, PIN_CTL0(pin));
reg = chvgpio_read(sc, CHV_GPIO_REG_MASK);
reg = chvgpio_read(sc, CHV_GPIO_REG_MASK);
reg1 = chvgpio_read(sc, PIN_CTL0(pin));
reg2 = chvgpio_read(sc, PIN_CTL1(pin));
reg = chvgpio_read(sc, PIN_CTL0(pin));
reg = chvgpio_read(sc, PIN_CTL0(pin));