SIMATIC_IPC_LED_PORT_BASE
DEFINE_RES_IO_NAMED(SIMATIC_IPC_LED_PORT_BASE, SZ_2, KBUILD_MODNAME);
val = inw(SIMATIC_IPC_LED_PORT_BASE);
outw(val | led->value, SIMATIC_IPC_LED_PORT_BASE);
outw(val & ~led->value, SIMATIC_IPC_LED_PORT_BASE);
return inw(SIMATIC_IPC_LED_PORT_BASE) & led->value ? LED_OFF : led_cd->max_brightness;