SYNC_CTL_HSYNC_INV 495 drivers/video/fbdev/gxt4500.c ~(SYNC_CTL_SYNC_ON_RGB | SYNC_CTL_HSYNC_INV | SYNC_CTL_HSYNC_INV 500 drivers/video/fbdev/gxt4500.c ctrlreg |= SYNC_CTL_HSYNC_INV;