diff --git a/src/mesa/drivers/dri/radeon/radeon_chipset.h b/src/mesa/drivers/dri/radeon/radeon_chipset.h
index 55a73ea..7820232 100644
--- a/src/mesa/drivers/dri/radeon/radeon_chipset.h
+++ b/src/mesa/drivers/dri/radeon/radeon_chipset.h
@@ -247,6 +247,7 @@
 #define PCI_CHIP_RS350_7835		0x7835
 #define PCI_CHIP_RS690_791E             0x791E
 #define PCI_CHIP_RS690_791F             0x791F
+#define PCI_CHIP_RS690_7942		0x7942
 #define PCI_CHIP_RS740_796C             0x796C
 #define PCI_CHIP_RS740_796D             0x796D
 #define PCI_CHIP_RS740_796E             0x796E
diff --git a/src/mesa/drivers/dri/radeon/radeon_screen.c b/src/mesa/drivers/dri/radeon/radeon_screen.c
index 84b5c46..adb7f9d 100644
--- a/src/mesa/drivers/dri/radeon/radeon_screen.c
+++ b/src/mesa/drivers/dri/radeon/radeon_screen.c
@@ -684,6 +684,7 @@ radeonCreateScreen( __DRIscreenPrivate *sPriv )
 
    case PCI_CHIP_RS690_791E:
    case PCI_CHIP_RS690_791F:
+   case PCI_CHIP_RS690_7942:
       screen->chip_family = CHIP_FAMILY_RS690;
       break;
    case PCI_CHIP_RS740_796C: