编译打包相关脚本文件。
拷贝tools/pack/chips/sun50iw1p1/bin/boot0_sdcard_sun50iw1p1.bin
到out/boot0_sdcard.fex
编译打包相关脚本文件。
拷贝tools/pack/chips/sun50iw1p1/bin/boot0_sdcard_sun50iw1p1.bin
到out/boot0_sdcard.fex
全志 a64 linux sdk采用了android 的boot image,这里顺着该sdk系统理解android的引导镜像。
如下linux-3.10/scripts/build.sh
代码片段显示,在完成内核编译后,改脚本直接将kernel的二进制可执行文件和cpio的gzip压缩包rootfs.cpio.gz 一起合并进入boot.img。
Ramfs is a very simple FileSystem that exports Linux's disk cacheing mechanisms (the page cache and dentry cache) as a dynamically resizable ram-based filesystem.
ramfs 是一个基于linux缓存机制(page cache and dentry cache)的简易文件系统,基于ram,大小可动态调整。
...这里系统了解全志和海思的解码能力。
从Allwinner_H6_V200_User_Manual_V1.1_decrypted
->Chapter 2 Overview
->2.2.6. Video Engine
->2.2.6.1. Video Decoder
如上启动顺序
...对linux c app里面的一个gpio操作云里雾里半天,是时候好好理理了。
主要是这gpio number是如何同pin number 一一对应的。
...This text documents the various structures provided by the V4L2 framework and their relationships.
The V4L2 drivers tend to be very complex due to the complexity of the hardware: most devices have multiple ICs, export multiple device nodes in /dev, and create also non-V4L2 devices such as DVB, ALSA, FB, I2C and input (IR) devices.
...依赖环境
配置sshd 支持root账户登录
...如上强制logrotate ,执行以下步骤。
重命名当前日志
...