hci_call
static int hci_call(ACPI_HANDLE h, int op, int function, UINT32 *arg);
ret = hci_call(h, op, HCI_REG_FAN, state);
ret = hci_call(h, op, HCI_REG_VIDEO_OUTPUT, video_output);
ret = hci_call(h, op, HCI_REG_LCD_BRIGHTNESS, brightness);
return (hci_call(h, op, HCI_REG_LCD_BACKLIGHT, backlight));
ret = hci_call(h, op, HCI_REG_CPU_SPEED, speed);
hci_call(h, HCI_SET, HCI_REG_SYSTEM_EVENT, &i);
while (hci_call(h, HCI_GET, HCI_REG_SYSTEM_EVENT, &key) == 0) {