Developer Guide

  • 2021.3
  • 11/18/2021
  • Public
Contents

Real-Time Configuration Driver

In this guide, you will see references to the real-time configuration driver (
tcc_buffer
). The cache allocation library interfaces with the driver to provide low-latency buffers.

Setup

If you completed the Get Started Guide for UEFI BIOS or the Get Started Guide for Slim Bootloader, the driver is already set up.
The following steps are for reference and troubleshooting.
Set Up the Real-Time Configuration Driver
The following steps show how to manually set up the real-time configuration driver:
  1. From your host system, connect to the target system:
    ssh <user>@<target>
  2. In the SSH session
    , add the driver to auto load:
    depmod -a echo "tcc_buffer" > /etc/modules-load.d/tcc_buffer.conf
  3. Load the driver:
    modprobe tcc_buffer
Confirm the Real-Time Configuration Driver
The following steps show how to confirm that the real-time configuration driver is loaded:
  1. From your host system, connect to the target system:
    ssh <user>@<target>
  2. In the SSH session
    , run the following command to check whether the driver is loaded:
    ls /dev/tcc
  3. If the system has the driver, you will see the following message:
    tcc_buffer

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.