diff options
Diffstat (limited to 'Source/DirectFB/patches/README.matroxfb-vsync-irq-patch')
| -rwxr-xr-x | Source/DirectFB/patches/README.matroxfb-vsync-irq-patch | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Source/DirectFB/patches/README.matroxfb-vsync-irq-patch b/Source/DirectFB/patches/README.matroxfb-vsync-irq-patch new file mode 100755 index 0000000..eaa24fe --- /dev/null +++ b/Source/DirectFB/patches/README.matroxfb-vsync-irq-patch @@ -0,0 +1,4 @@ +This patch adds the ioctl FBIO_WAITFORVSYNC. +The calling process' state will be set to TASK_INTERRUPTIBLE, +it will be waken up by the interrupt handler for the vertical retrace. +Processes can now wait for the vertical retrace without CPU usage. |