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 - windows-wdk
 ---
 
-
-<!---
-    name: GPIO Sample Drivers
-    platform: KMDF UMDF1
-    language: cpp
-    category: GPIO
-    description: Illustrates how to write a GPIO controller driver that works in conjunction with the GPIO framework extension (GpioClx).
-    samplefwlink: http://go.microsoft.com/fwlink/p/?LinkId=617729
---->
-
 # GPIO Sample Drivers
 
-The GPIO samples contain annotated code to illustrate how to write a [GPIO controller driver](http://msdn.microsoft.com/en-us/library/windows/hardware/hh439509) that works in conjunction with the [GPIO framework extension](http://msdn.microsoft.com/en-us/library/windows/hardware/hh439512) (GpioClx) to handle GPIO I/O control requests, and a peripheral driver that runs in kernel mode and uses GPIO resources. For a sample that shows how to write a GPIO peripheral driver that runs in user mode, please refer to the SPB accelerometer sample driver (SPB\\peripherals\\accelerometer).
+The GPIO samples contain annotated code to illustrate how to write a [GPIO controller driver](https://docs.microsoft.com/windows-hardware/drivers/gpio/index) that works in conjunction with the [GPIO framework extension](https://docs.microsoft.com/windows-hardware/drivers/gpio/gpio-driver-support-overview) (GpioClx) to handle GPIO I/O control requests, and a peripheral driver that runs in kernel mode and uses GPIO resources.
 
 The GPIO sample set contains the following samples:
 
-Minifilter | Sample Description
------------|-------------------
-SimGpio | The files in this sample contain the source code for a GPIO controller driver that communicates with GpioClx through the GpioClx device driver interface (DDI). The GPIO controller driver is written for a hypothetical memory-mapped GPIO controller (simgpio). The code is meant to be purely instructional. An ASL file illustrates how to specify a GPIO interrupt and I/O descriptor in the ACPI firmware.
-SimGpio_I2C | The files in this sample contain the source code for a GPIO controller driver that communicates with GpioClx through the GpioClx DDI. In contrast to the SimGpio sample, the GPIO controller in this sample is not memory-mapped. The GPIO controller driver is written for a hypothetical GPIO controller that resides on an I2C bus (simgpio_i2c). The code is meant to be purely instructional. An ASL file illustrates how to specify a GPIO interrupt and I/O descriptor in the ACPI firmware.
-SimDevice\kmdf | The purpose of this sample is to show how a driver opens a device and performs I/O operations on a GPIO controller in kernel mode. Additionally, this sample demonstrates how the driver connects to a GPIO interrupt resource. The ASL file illustrates how to specify a GPIO interrupt and I/O descriptor in the ACPI firmware.
-SimDevice\umdf | The purpose of this sample is to show how a driver opens a device and performs I/O operations on a GPIO controller in user mode. Additionally, this sample demonstrates how the driver connects to a GPIO interrupt resource. The ASL file illustrates how to specify a GPIO interrupt and I/O descriptor in the ACPI firmware.
\ No newline at end of file
+| Minifilter | Sample description |
+| --- | --- |
+| SimGpio | The files in this sample contain the source code for a GPIO controller driver that communicates with GpioClx through the GpioClx device driver interface (DDI). The GPIO controller driver is written for a hypothetical memory-mapped GPIO controller (simgpio). The code is meant to be purely instructional. An ASL file illustrates how to specify a GPIO interrupt and I/O descriptor in the ACPI firmware. |
+| SimGpio_I2C | The files in this sample contain the source code for a GPIO controller driver that communicates with GpioClx through the GpioClx DDI. In contrast to the SimGpio sample, the GPIO controller in this sample is not memory-mapped. The GPIO controller driver is written for a hypothetical GPIO controller that resides on an I2C bus (simgpio_i2c). The code is meant to be purely instructional. An ASL file illustrates how to specify a GPIO interrupt and I/O descriptor in the ACPI firmware. |
+| SimDevice\kmdf | The purpose of this sample is to show how a driver opens a device and performs I/O operations on a GPIO controller in kernel mode. Additionally, this sample demonstrates how the driver connects to a GPIO interrupt resource. The ASL file illustrates how to specify a GPIO interrupt and I/O descriptor in the ACPI firmware. |
+| SimDevice\umdf | The purpose of this sample is to show how a driver opens a device and performs I/O operations on a GPIO controller in user mode. Additionally, this sample demonstrates how the driver connects to a GPIO interrupt resource. The ASL file illustrates how to specify a GPIO interrupt and I/O descriptor in the ACPI firmware. |