summaryrefslogtreecommitdiff
path: root/general/SystemDma
diff options
context:
space:
mode:
Diffstat (limited to 'general/SystemDma')
-rw-r--r--general/SystemDma/wdm/README.md16
1 files changed, 3 insertions, 13 deletions
diff --git a/general/SystemDma/wdm/README.md b/general/SystemDma/wdm/README.md
index 3698f729..43770319 100644
--- a/general/SystemDma/wdm/README.md
+++ b/general/SystemDma/wdm/README.md
@@ -8,24 +8,14 @@ products:
- windows-wdk
---
-
-
-<!---
- name: System DMA sample
- platform: WDM
- language: cpp
- category: General
- description: Demonstrates how a driver could use a system DMA controller to write data to a hardware location using V3 System DMA.
- samplefwlink: http://go.microsoft.com/fwlink/p/?LinkId=617722
---->
-
# System DMA
This sample demonstrates the usage of V3 System DMA. It shows how a driver could use a system DMA controller supported by Windows to write data to a hardware location using DMA.
-The sample consists of a legacy device driver and a Win32 console mode test application. The test application opens a handle to the device exposed by the driver and makes a DeviceIoControl call to initiate the example system DMA. To understand how the V3 system DMA calls are invoked please study SDmaWrite() in SDma.c.
+The sample consists of a legacy device driver and a Win32 console mode test application. The test application opens a handle to the device exposed by the driver and makes a DeviceIoControl call to initiate the example system DMA. To understand how the V3 system DMA calls are invoked, see the SDmaWrite function in sdma.c.
-**Note** This sample driver is not a PnP driver. This is a minimal driver meant to demonstrate an OS feature. Neither it nor its sample programs are intended for use in a production environment. Rather, they are intended for educational purposes and as a skeleton driver.
+> [!NOTE]
+> This sample driver is not a PnP driver. This is a minimal driver meant to demonstrate an OS feature. Neither it nor its sample programs are intended for use in a production environment. Rather, they are intended for educational purposes and as a skeleton driver.
## Run the sample