SISVID            234 drivers/usb/misc/sisusbvga/sisusb.h #define SISVID		SISUSB_PCI_IOPORTBASE + VIDEOOFFSET
SISVID            156 drivers/video/fbdev/sis/sis.h #define SISVID			(ivideo->SiS_Pr.RelIO + 0x02 - 0x30)