1、DTS文件 &keypad { keypad,num-rows = ; keypad,num-columns = ; linux,keymap = <0x00000012...KEY_UNKNOWN */ 0x07060160 /* KEY_OK */ 0x0707006c>; /* KEY_DOWN */ linux...0x00030066 /* KEY_HOME*/ 00行,03列,键值0x66即HOME建 2、驱动 路径 linux\drivers\input\keybord\ 2、1 probe static...keypad_data->rows, &keypad_data->cols); if (err) return err; if (of_get_property(np, "linux...propname) propname = "linux,keymap"; prop = of_get_property(np, propname, &proplen); if (!
Platform Devices and Drivers ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ See for the driver...For further information, see ...._ 这是由于二者结构获取硬件信息 的方式不同造成 的,在powerpc体系是通过dts 对比platform_driver和of_platform_driver 在include/linux/platform_device.h...driver; const struct platform_device_id *id_table; }; 在include/linux/of_platform_device.h struct...*data; #else kernel_ulong_t data; #endif }; —————————————————————————————————— 在在include/linux
前言 linux将所有的驱动抽象为struct device_driver结构。这样设计可以方便驱动程序更好编写,在编写驱动的时候只需要将此结构嵌入到具体的驱动中即可。...device_driver *driver, char *buf); ssize_t (*store)(struct device_driver *driver, const char *buf,...(_name, _mode, _show, _store) #define DRIVER_ATTR_RW(_name) \ struct driver_attribute driver_attr_##..._name = __ATTR_RW(_name) #define DRIVER_ATTR_RO(_name) \ struct driver_attribute driver_attr_##_name...= __ATTR_RO(_name) #define DRIVER_ATTR_WO(_name) \ struct driver_attribute driver_attr_##_name = __
/types.h> 15 #include 16 #include 17 #include 18 #include 19 #include 20 #include 21 #include... 22 #include 23 #include 24 #include <linux/input...Linux中输入设备的事件类型有(这里只列出了常用的一些,更多请看linux/input.h中): EV_SYN 0x00 同步事件 EV_KEY 0x01 按键事件 EV_REL 0x02 相对坐标...439 return platform_driver_register(&matrix_keypad_driver); 440 } 441 442 static void __exit
删除模块 lsmod:List module 列表模块 alias :Create your own name for a command bash :GNU Bourne-Again Shell linux...FIFO = First In, First Out GRUB = GRand Unified Bootloader IFS = Internal Field Seperators LILO = LInux...Irritating Superfluous Parentheses ln = LiNk lpr = Line PRint ls = list lsof = LiSt Open Files LILO = LInux
删除模块 lsmod:List module 列表模块 alias :Create your own name for a command bash :GNU Bourne-Again Shell linux...FIFO = First In, First Out GRUB = GRand Unified Bootloader IFS = Internal Field Seperators LILO = LInux
来自: http://www.diybl.com/course/6_system/linux/Linuxjs/200871/129585.html 从 Linux 2.6 起引入了一套新的驱动管理和注册机制...Linux 中大部分的设备驱动,都可以使用这套机制 , 设备用 Platform_device 表示,驱动用 Platform_driver 进行注册。...Linux platform driver 机制和传统的 device driver 机制 ( 通过 driver_register 函数进行注册 ) 相比,一个十分明显的优势在于 platform 机制将设备本身的资源注册进内核...在 2.6 内核中 platform 设备用结构体 platform_device 来描述,该结构体定义在 kernel/include/linux/platform_device.h 中, struct...参考资料: linux-2.6.24/Documentation/driver-model/platform.txt 《platform _device 和 platform_driver 注册过程
从Linux 2.6起引入了一套新的驱动管理和注册机制:Platform_device和Platform_driver。...Linux中大部分的设备驱动,都可以使用这套机制, 设备用Platform_device表示,驱动用Platform_driver进行注册。...Linux platform driver机制和传统的device driver 机制(通过driver_register函数进行注册)相比,一个十分明显的优势在于platform机制将设备本身的资源注册进内核...num_resources; struct resource * resource; }; 该结构一个重要的元素是resource,该元素存入了最为重要的设备资源信息,定义在kernel/include/linux...参考资料: linux-2.6.24/Documentation/driver-model/platform.txt 《platform _device和platform_driver注册过程》 platform_device_register
2.3 编写与DTS节点对应的driver 这些driver的存在形式是多种多样的,但所做的工作基本类似: 1)初始化regulator的宿主(如上面的tps5163、PMIC、等等),最终的目的是,...DTS相关的实现逻辑 3.1 DTS的内容 回忆一下“Linux Regulator Framework(1)_概述”中介绍的machine的主要功能:使用软件语言(struct regulator_init_data...提供,并在regulator注册时调用; driver_data,保存driver的私有数据,并在调用regulator_init时传入。...主要数据结构 4.1 struct regulator_desc 1: /* include/linux/regulator/driver.h */ 2: 3: struct regulator_desc...下面是operation mode定义(位于include/linux/regulator/consumer.h中): 1: /* 2: * Regulator operating modes
image.png 提示:本文记录了调试ES7210 Driver 过程中的问题与收获。 一、ES7210 简介 ?...二、ES7210 Driver Porting 1....Broadcom 平台 集成 ES7210 ES7210 Driver 需要顺芯原厂提供,虽然Linux 先的音频框架是一样的,但是芯片内部会有一系列寄存器需要设置。...将ES7210.c和ES7210.h复制到src/kernel/linux/v4.4/sound/soc/codecs/路径下 修改src/kernel/linux/v4.4/sound/soc/codecs...总结 调试ES7210 Driver 前后花费了一周的时间,过程中遇到的很多问题,所以每次交付的时间都Delay。
static struct platform_driver mxc_v4l2_driver = { .driver = { .name = “mxc_v4l2_capture”, .owner...(struct platform_driver *drv) { drv->driver.bus = &platform_bus_type; //这个platform_bus_type在下面会用到...; return driver_register(&drv->driver); } static int platform_drv_probe(struct device *_dev) {...struct platform_driver *drv = to_platform_driver(_dev->driver); struct platform_device *dev =...(&drv->driver); int driver_register(struct device_driver *drv) { int ret; struct device_driver
那么问题来了,Linux kernel怎么支持这种框架呢?...ARM big·Little driver的软件框架 基于上面的思考,linux kernel使用如下的软件框架实现ARM big·Little切换功能: arm big little cpufreq...4.1 初始化 和ARM big·Little driver有关的初始化过程主要分为三个部分: 1)CPU core的枚举和初始化,具体可参考“ Linux CPU core的电源管理(5)_cpu...有关cpufreq driver以及cpufreq_register_driver的描述可参考“Linux cpufreq framework(2)_cpufreq driver”。...以及相关的回调函数已经在“Linux cpufreq framework(2)_cpufreq driver”中有详细介绍,这里再稍作说明一下: .init()是cpufreq driver的入口函数
Linux platform installation method one Note: DM database needs to be installed first 1.Download the driver...package unzip python-126594-20201027.zip 3.Compile the driver package //cd your Driver source code decompression...directory cd python/dmPython_C/dmPython python setup.py install Linux platform installation method..._64/egg/dmPython.py", line 7, in File "build/bdist.linux-x86_64/egg/dmPython.py", line 6,...in the figure: Compilation result Installed /usr/lib64/python2.7/site-packages/dmPython-2.3-py2.7-linux-x86
很多朋友在论坛上找Linux英文命令,我们给大家整理了比较全的Linux英文命令,并且附上了对应的中文意思。...删除模块 lsmod:List module 列表模块 alias :Create your own name for a command bash :GNU Bourne-Again Shell linux...FIFO = First In, First Out GRUB = GRand Unified Bootloader IFS = Internal Field Seperators LILO = LInux...recode -l | more 显示所有允许的转换格式 文件系统分析 badblocks -v /dev/hda1 检查磁盘hda1上的坏磁块 fsck /dev/hda1 修复/检查hda1磁盘上linux...ext2的文件系统 mke2fs -j /dev/hda1 在hda1分区创建一个linux ext3(日志型)的文件系统 mkfs -t vfat 32 -F /dev/hda1 创建一个 FAT32
DRD driver DRD驱动在usb/dwc3 1.1 dts dwc3@44000000 { /* Compatible ID used by the Linux driver for this...= ; dr_mode = "otg"; extcon = ; }; extcon_dwc3: extcon_dwc3 { compatible = "linux...1.2 drd driver usb/dwc3/core.c: static struct platform_driver dwc3_driver = { .probe = dwc3_probe, .remove...= "linux,extcon-usb-gpio", }, { /* sentinel */ } }; static struct platform_driver usb_extcon_driver...usb_extcon_pm_ops, .of_match_table = usb_extcon_dt_match, }, .id_table = usb_extcon_platform_ids, }; 1)首先根据"linux
Getty alias Create an alias for Linux commands alsactl Access advanced controls for ALSA soundcard driver...Perform read/write operation for ALSA RawMIDI ports. amixer Access CLI-based mixer for ALSA soundcard driver...machine hardware name. arecord Just like aplay, it’s a sound recorder and player for ALSA soundcard driver...file systems. dumpe2fs Dump ext2/ext3/ext4 file systems. dumpkeys Show information about the keyboard driver...For vi, use ctags. ethtool Used to query and control network driver and hardware settings. eval Used
hat package manager dpkg:Debian package manager apt:Advanced package tool(Debian或基于Debian的发行版中提供) 其他Linux...FIFO = First In, First Out GRUB = GRand Unified Bootloader IFS= Internal Field Seperators LILO = LInux
stdio.h> #include #include #include #include #include keybit); } 发现错在KEY_ROW和KEY_COL这两个宏,查看include/linux...((k) >> 24) & 0xff ) KEY_COL(k) (((k) >> 16) & 0xff) 也就是说这两个宏决定行列的规则是行是键值的高8位,列是键值的次高8位 查看include/linux
storage driver负责不同layer之间的交互,它允许在容器的读写层创建数据,读写层数据不会被持久化,且读写效率较低。...不同的storage driver实现不同,但所有的storage driver都使用了如下栈式镜像结构以及CoW(copy-on-write)策略。...插件的选择取决于docker的版本以及使用的系统等,官方对storage driver的选择有如下建议,可以看出目前主要推荐overlay2。...overlay和devicemapper已经在docker 18.09版本中被废除 Linux distribution Recommended storage drivers Alternative...This is because their layers cannot be used by the new storage driver.
hat package manager dpkg:Debian package manager apt:Advanced package tool(Debian或基于Debian的发行版中提供) 部分Linux...下面的是开机启动文件 FIFO = First In, First Out GRUB = GRand Unified Bootloader IFS = Internal Field Seperators LILO = LInux
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