HelenOS sources

USBLEGCTLSTS_OFFSET  133 uspace/drv/bus/usb/ehci/res.c 		    eecp + USBLEGCTLSTS_OFFSET, &usblegctlsts);
USBLEGCTLSTS_OFFSET  146 uspace/drv/bus/usb/ehci/res.c 		    eecp + USBLEGCTLSTS_OFFSET, 0xe0000000);
USBLEGCTLSTS_OFFSET  156 uspace/drv/bus/usb/ehci/res.c 		    eecp + USBLEGCTLSTS_OFFSET, &usblegctlsts);
HelenOS homepage, sources at GitHub