rk3288开发板Ubuntu没有ttyUSB(串口转USB驱动--cp210x, ftdi, pl2303)

本文介绍如何在Ubuntu系统上为RK3288开发板编译Android SDK,包括准备环境、生成ko文件及设置开机加载等步骤。

0.快车

  • 下载ko文件
  • 解压并复制到开发板的/mnt
  • 执行3中操作

1.准备工作:

  • 一个剩余空间大于30G的Ubuntu系统
  • mkdir rk3288
  • cd rk3288
  • 下载rk3288 Android SDK源码并解压
  • git reset –hard(两个减号)
  • sudo apt-get install build-essential lzop libncurses5-dev libssl-dev
  • 如果使用的是 64 位的 Ubuntu,还需要安装:sudo apt-get install libc6:i386

2.生成ko文件

  • cd kernel
  • make firefly-rk3288-linux_defconfig
  • gedit .config将CP210X所在行改为CONFIG_USB_SERIAL_CP210X=m
  • make modules
  • mkdir modules_install
  • make INSTALL_MOD_PATH=./modules_install modules_install
  • 将kernel/modules_install/lib/modules/3.10.0/kernel/drivers/usb/serial中的cp210x.ko复制到开发板的/mnt

3.设置开机加载

  • sudo gedit /etc/rc.local
  • 在exit 0前面输入/sbin/insmod /mnt/cp210x.ko

4.日志

  • 最好不要使用make menuconfig生成配置文件,因为会编译很多东西,容易出错
This bundle contains a modified CP210x driver for the 4.10.0 kernel (Ubuntu 17.04). It contains: - Support for the CP2102N NOTE: This driver is an example of how to perform GPIO operations within the CP210x driver since the driver on kernel.org does not support GPIO at this time. This driver has only been written and tested on the Linux 3.13.0 kernel on Ubuntu 14.04. This driver is a modified version of the existing driver in the Linux 3.13.0 kernel, which is maintained at kernel.org. It is recommened to use the driver there that matches your specific kernel version: www.kernel.org Build instrutions: Ubuntu: 1. make ( your cp210x driver ) 2. cp cp210x.ko to /lib/modules//kernel/drivers/usb/serial 3. insmod /lib/modules/<kernel-version/kernel/drivers/usb/serial/usbserial.ko 4. insmod cp210x.ko RedHat: 1. yum update kernel* //need to update the kernel first otherwise your header won't match 2. yum install kernel-devel kernel-headers //get the devel and header packages. 3. reboot //your build link should be fixed after your system come back 4. make ( your cp210x driver ) // should be able to build successfully at this point 5. cp cp210x.ko to /lib/modules//kernel/drivers/usb/serial 6a. insmod /lib/modules/<kernel-version/kernel/drivers/usb/serial/usbserial.ko 6. insmod cp210x.ko 7. sudo chmod 666 /dev/ttyUSB0 8. sudo chmod 666 /dev/ttyUSB1 GPIO example: This shows how to use the two IOCTLs to set GPIO state. Build instructions: 1. g++ cp210x_gpio_example.c -o cp210x_gpio_example 2. ./cp210x_gpio_example
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