/*! \page page_ni_rio_kernel NI RIO Kernel Modules for X-Series PCIe Connectivity

\tableofcontents

\section linux_rio Linux NI RIO Installation and Usage

\subsection linux_requirements Requirements

In order to use the PCIe transport connection on the USRP X300 / X310 devices,
you must install the NI USRP RIO driver stack. These include kernel modules
which must be loaded.

Your kernel version must be supported by the kernel modules. Only 64-bit kernels
are supported.

<b>Currently, the latest supported kernel version is 3.14.x.</b>

\subsection linux_installation Installing the Drivers in Linux

The NI USRP RIO installer can be found <a
href=http://files.ettus.com/binaries/niusrprio/niusrprio-installer.tar.gz>here</a>.

Download the installer and extract it with the following command:

    tar zxf niusrprio-installer.tar.gz

The files will be extracted into a directory called <b>niusrprio-installer</b>.

To install the NI USRPRIO kernel modules and RPC server, run the following
command:

    sudo niusrprio-installer/INSTALL

Select 'y' for each prompt, and the script will install all necessary
components.  This script will automatically load all necessary kernel modules
for the duration of the session.

\subsection linux_enabling Enabling and Disabling Usage

Once everything is installed, run the following commands to enable use of the
X300/X310 over PCI Express:

    sudo /usr/local/bin/niusrprio_pcie start

To stop these processes, run the following command:

    sudo /usr/local/bin/niusrprio_pcie stop

To check if the kernel modules are loaded and if the RPC server is running, run
the following command:

    /usr/local/bin/niusrprio_pcie status

<b>NOTE:</b> niusrprio_pcie start does not run when the host system is booted.
If you would like the USRP PCIe device to be available automatically after
a system restart, please create an init.d script that runs niusrprio_pcie start.

\subsection linux_swapping Hot-Plugging and Power-Cycling

The NI USRPRIO kernel modules are built for a specific kernel version. If you
upgrade/downgrade the linux kernel on the host to a version different from the
one that the installer was run on, then you may see the following error message
when running `niusrprio star`.

    ERROR: could not insert 'NiRioSrv': Unknown symbol in module, or unknown
    parameter (see dmesg) ERROR: could not insert 'niusrpriok': Unknown symbol
    in module, or unknown parameter (see dmesg)

To rebuild the kernel modules for the currently running kernel, simple run the
following

    sudo /usr/local/bin/niusrprio_pcie stop sudo /usr/local/bin/updateNIDrivers
    --no-prompt sudo /usr/local/bin/niusrprio_pcie start

\subsection linux_uninstalling Uninstalling in Linux

To uninstall the NI USRP RIO kernel modules and RPC server, run the following
command:

    sudo niusrprio-installer/UNINSTALL

Select y at the prompt, and the script will uninstall all installed components.


\section windows_rio Windows NI RIO Installation and Usage

\subsection win_requirements Requirements

The kernel driver is only supported on:

- Windows 8.1 32-bit
- Windows 8.1 64-bit
- Windows 7 32-bit
- Windows 7 64-bit
- Windows Vista 32-bit
- Windows Vista 64-bit
- Windows XP (SP3) 32-bit.

\subsection win_install Installing NI-USRP in Windows

The NI-USRP 1.3 installer can be found <a
href="http://www.ni.com/download/ni-usrp-1.3/4711/en/">here</a> You will need to
create a free NI User Account to download the installer.

Perform the following steps to download and install the NI-USRP exe driver
package:

- Choose the "2. Standard Download:NIUSRP130.exe" option to download
- NIUSRP130.exe to your computer Run NIUSRP130.exe as an Administrator and
- extract the contents to 'C:\\National Instruments Downloads\\NI-USRP\\1.3' In the
- extract location, run setup.exe and follow the prompts.

Reboot the computer after both the NI-USRP package has been installed.

\subsection win_enabling Enabling and Disabling Usage

Once everything is installed and the system is rebooted, your X300/X310 PCI
Express device should automatically be detected by the Windows Device Manager.
The device should be enabled by default.

- To disable the USRPRIO device, navigate to "Device Manager", locate your
- USRPRIO-X3x0 device, right-click on it and choose "Disable".  To enable the
- USRPRIO device, navigate to "Device Manager", locate your USRPRIO-X3x0 device,
- right-click on it and choose "Enable".

\subsection win_swapping Hot-plugging and Power-cycling

The USRP X3x0, NI USRP-294x and NI USRP-295x devices <b>cannot</b> be hot-swapped
when connected over PCI Express. Unplugging the PCI Express connection or
powering the device should be done only after disabling the device.

<b>WARNING:</b> If the device is unplugged without running the above command, the
system could become unstable.

\subsection win_uninstall Uninstalling NI-USRP in Windows

Navigate to the Control Panel and open "Programs". Then select National
Instruments Software and select NI-USRP and NI-RIO from the list. Click on
uninstall to remove the drivers from your system.

*/
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