DRV_07_UInput分析_用户态创建input_dev

<code class="javascript">git clone https://e.coding.net/weidongshan/linux/doc_and_source_for_drivers.git</code>

<code class="javascript">export ARCH=armexport CROSS_COMPILE=arm-linux-gnueabihf-export PATH=$PATH:/home/book/100ask_imx6ull-qemu/ToolChain/gcc-linaro-6.2.1-2016.11-x86_64_arm-linux-gnueabihf/bin</code>

<code class="javascript">-> Device Drivers  -> Input device support    -> Generic input layer         -> Miscellaneous devices         <M>   User level driver support</code>

<code class="javascript">book@100ask:~/100ask_imx6ull-qemu$ cd linux-4.9.88book@100ask:~/100ask_imx6ull-qemu/linux-4.9.88$ make modules</code>

<code class="javascript">drivers/input/misc/uinput.ko</code>

<code class="javascript">$ cp drivers/input/misc/uinput.ko ~/nfs_rootfs/</code>

<code class="javascript">$ make$ cp uinput_test ~/nfs_rootfs/</code>

<code class="javascript">$ cd ubuntu-18.04_imx6ul_qemu_system$ ./qemu-imx6ull-gui.sh</code>

<code class="javascript">$ mount -t nfs -o nolock,vers=3 10.0.2.2:/home/book/nfs_rootfs /mnt$ insmod /mnt/uinput.ko$ ls -l /dev/uinput   // 确认设备节点// 后台运行uinput_test/mnt/uinput_test &// 看到提示这个提示时: Will sleep 60s, in this time you should run ts_calibreate// 运行校准程序// 注意：如果有真实的触摸屏驱动，需要指定使用虚拟的设备节点//      方法示例: export TSLIB_TSDEVICE=/dev/input/event3ts_calibrate// 看到提示这个提示时: Will sleep 60s, in this time you should run ts_test// 运行测试程序ts_test</code>

<code class="javascript">### 4. 结合应用程序分析uinput</code>