理论知识很枯燥,但这些都是基本功,学完可能会忘,但等用的时候,会发觉之前的学习是非常有意义的,学习线程就是这样子的. 1.如何创建锁? Lock lock = new ReentrantLock(); 2.如何使用锁? 可以参看Lock文档,其使用格式如下: class X { private final ReentrantLock lock = new ReentrantLock(); // ... public void m() { lock.lock(); // block until c…
Boot your Orange PI board from EMMC without SD Card inserted login insert your SD Card Run: sudo install_to_sdcard [btrfs] Copy the Code Your emmc Linux installation will be transfered to SD Card You can boot from that SD Card on another or the same…
Download any of the available images (xz archive) from Mega or GoogleDrive Download scriptbin_kernel.tar.gz, it contains the latest kernel (uImage) and script.bin Unpack the archive. Write the xxx.img file (disk image) to your SD Card on Linux use dd…
原文网址:http://www.sandyscott.net/2013/08/14/virtualbox-direct-drive-access/ I’ve trying to get my Raspberry Pi working with a touchscreen (eGalax Touch). This blog post has been an incredible help, but I stumbled at the very last hurdle – modifying the…