DEVF_DUALHEAD    1406 drivers/video/fbdev/matrox/matroxfb_base.c #define DEVF_G2CORE	(DEVF_GCORE | DEVF_ANY_VXRES | DEVF_MAVEN_CAPABLE | DEVF_PANELLINK_CAPABLE | DEVF_SRCORG | DEVF_DUALHEAD)
DEVF_DUALHEAD    1411 drivers/video/fbdev/matrox/matroxfb_base.c #define DEVF_G450	(DEVF_GCORE | DEVF_ANY_VXRES | DEVF_SUPPORT32MB | DEVF_TEXT16B | DEVF_CRTC2 | DEVF_G450DAC | DEVF_SRCORG | DEVF_DUALHEAD)
DEVF_DUALHEAD    1663 drivers/video/fbdev/matrox/matroxfb_base.c 	minfo->devflags.dualhead = (b->flags & DEVF_DUALHEAD) != 0;