Development environment and tools of device driver(一)

http://docs.oracle.com/cd/E18752_01/html/817-5789/frymm.html

Development environment and tools

更多信息:http://docs.oracle.com/cd/E18752_01/html/816-4854/fcaqh.html#DRIVERfcaqh

写一个 device driver 的一般步骤:

1. 使用9E,9F,9S 中定义的接口和结构写一个C源程序,大部分需要的include files 在/usr/include/sys.中。function 和结构 man pages显示了你需要哪些文件。

2. 写一个.conf 硬件配置文件来定义你的 driver 的属性值。

3. 编译链接你的driver,当为Solaris OS编译一个driver时经常使用-D_KERNEL 选项。默认的编译结果是32位的。为了在64位平台上得到一个64位的结果,参考

http://docs.oracle.com/cd/E18752_01/html/817-5789/frymm.html#fgouv

4. 复制你的driver 的二进制文件和配置文件到合适的[platform]/kernel  目录。http://docs.oracle.com/cd/E18752_01/html/817-5789/emjjp.html#fgomm对driver目录的描述。

5. 用add_drv 命令导入你的driver。你的driver导入后,可以在/dev 和/devices 中看到。还可以在/etc/name_to_major文件中看到你的driver 到entry。


Writing a driver (由C源程序和硬件配置文件组成)


Writing a driver module

driver的c程序就是数据和函数到总和,driver中是没有main()的。对于一个driver许多subroutines 有特定到功能,我们叫他们entry point . Function man page 提供driver中需要到function的声明和需要include进去的头文件。确定你找到了正确的man page。例如,下面到这条命令显示ioct1 man page.但是ioct1 系统调用不能应用到device driver中。

% man ioct1

用下面两个命令中的一个来显示ioct1的man page。ioct1的subroutine 是一个device driver 的entry point。

% man ioct1.9e
% man -s 9e ioct1

64位系统可以跑32位或64位的用户程序(kernel 不行),只是在运行32位用户程序时需要在两种数据模型中进行数据转换。http://docs.oracle.com/cd/E18752_01/html/817-5789/ffdqq.html#fgham

Sun studio IDE 包括以下三种源代码编辑器:GVM、XEmacs和NetBeans 提供的Source Editor。IDE 提供这些工具的在线帮助,也可以在命令行运行GVIM 和XEmacs。


Writing a Configuration file

一个不能self-identifying 的driver 一定要有配置文件 node_name.conf ,node_name是为device预先设定好的。self_identifying driver指的是driver可以从DDI属性接口(ddi_prop_get_int(9F) and ddi_prop_lookup(9F))中得到所有他需要到属性信息。一个配置文件至少要包含device的名字,和device‘s parent 的名字或类型。

For more information about device driver configuration files, see the driver.conf(4) manpage. For an example configuration file, see Writing the Device Configuration File

tips

9E :http://docs.oracle.com/cd/E23824_01/html/821-1476/gentextid-845.html#scrolltoc

9F :http://docs.oracle.com/cd/E23824_01/html/821-1477/gentextid-4704.html#scrolltoc

9S :http://docs.oracle.com/cd/E23824_01/html/821-1476/gentextid-845.html#scrolltoc







内容概要:本文系统介绍了算术优化算法(AOA)的基本原理、核心思想及Python实现方法,并通过图像分割的实际案例展示了其应用价值。AOA是种基于种群的元启发式算法,其核心思想来源于四则运算,利用乘除运算进行全局勘探,加减运算进行局部开发,通过数学优化器加速函数(MOA)和数学优化概率(MOP)动态控制搜索过程,在全局探索与局部开发之间实现平衡。文章详细解析了算法的初始化、勘探与开发阶段的更新策略,并提供了完整的Python代码实现,结合Rastrigin函数进行测试验证。进步地,以Flask框架搭建前后端分离系统,将AOA应用于图像分割任务,展示了其在实际工程中的可行性与高效性。最后,通过收敛速度、寻优精度等指标评估算法性能,并提出自适应参数调整、模型优化和并行计算等改进策略。; 适合人群:具备定Python编程基础和优化算法基础知识的高校学生、科研人员及工程技术人员,尤其适合从事人工智能、图像处理、智能优化等领域的从业者;; 使用场景及目标:①理解元启发式算法的设计思想与实现机制;②掌握AOA在函数优化、图像分割等实际问题中的建模与求解方法;③学习如何将优化算法集成到Web系统中实现工程化应用;④为算法性能评估与改进提供实践参考; 阅读建议:建议读者结合代码逐行调试,深入理解算法流程中MOA与MOP的作用机制,尝试在不同测试函数上运行算法以观察性能差异,并可进步扩展图像分割模块,引入更复杂的预处理或后处理技术以提升分割效果。
### Livox ROS2 Driver Usage and Information For users interested in the Livox LiDAR with respect to its integration into a ROS2 environment, it is important to note that there has been community-driven development around creating drivers compatible with this sensor technology. A discussion on GitHub highlights challenges faced when transitioning from ROS1 support for Livox sensors towards developing similar functionality within ROS2 frameworks[^1]. This indicates an ongoing effort but also potential instability or incomplete features during early adoption phases. To use the Livox ROS2 driver effectively: - Ensure compatibility between your hardware (specific model of Livox LiDAR) and software versions. - Installation typically involves cloning repositories associated with `livox_ros_driver` projects adapted for ROS2 environments. These may not be officially maintained by Livox itself but rather contributed by third parties who aim at filling gaps left unaddressed directly by manufacturers. Regarding operational specifics such as configuration parameters or launch file structures, these can vary based upon how developers have structured their implementations. However, common practices include setting up topics for publishing point cloud data collected by the device along with services for controlling sensor behavior like starting/stopping scans. Additionally, tools designed specifically for managing nodes under ROS2 might prove beneficial when working alongside custom-built drivers. For instance, rosmon serves as both a launcher and monitor daemon which could help manage processes related to running Livox-related applications more robustly[^2]. ```bash # Example command to install dependencies using vcpkg package manager mentioned in some discussions about building Livox SDK components vcpkg install livox-sdk:x64-linux ```
评论
添加红包

请填写红包祝福语或标题

红包个数最小为10个

红包金额最低5元

当前余额3.43前往充值 >
需支付:10.00
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值