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ubuntu获得linux固化的USB设备编号

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if(strstr(buf, "ttyUSB0")){ memset(buf, 0, sizeof(buf)); return 0;
}

if(strstr(buf, "ttyUSB1")){ memset(buf, 0, sizeof(buf)); return 1;
}
if(strstr(buf, "ttyUSB2")){ memset(buf, 0, sizeof(buf)); return 2;
ls -l /sys/class/video4linux/ lrwxrwxrwx 1 root root 0 Aug 10 09:43 ttyUSB0 -> ../../devices/pci0000:00/0000:00 :14.0/usb1/1-3/1-3:1.0/ttyUSB0/tty/ttyUSB0 lrwxrwxrwx 1 root root 0 Aug 10 09:43 ttyUSB1 -> ../../devices/pci0000:00/0000:00 :14.0/usb1/1-4/1-4:1.0/ttyUSB1/tty/ttyUSB1
sprintf(fpga_port_device, "/dev/ttyUSB%d", fpga_ttyUSB_id); sprintf(cmd_port_device, "/dev/ttyUSB%d", ti_ttyUSB_id);
printf("%d, %d, %s,%s\n", fpga_ttyUSB_id, ti_ttyUSB_id, fpga_port_device, cmd_port_de vice); }
bool autoDeviceId(short ids[2] ) {
char result[300];
/* if change 300 -> 30 , then run-time: *** stack smashing detected ***: /home/bzj/rospkgs/devel/lib/learning_tf2/autoVi deo terminated Aborted (core dumped)
} else
if(fpga_ttyUSB_id==1 && ti_ttyUSB_id==0){ fpga_port_device = "/dev/ttyUSB1";
cmd_port_device = "/dev/ttyUSB0"; } else{
printf("com init error.\n"); } */
sult[i+49]<<result[i+50]<<result[i+51]<<result[i+52]<<result[i+53]<<result[i+54 ]<<result[i+55]<<","<<endl<<endl;
str = result +i +45; result[i+55] = 0;
// fpga_port_device = (char *)malloc(15); // cmd_port_device = (char *)malloc(15); /*
if(fpga_ttyUSB_id==0 && ti_ttyUSB_id==1){ fpga_port_device = "/dev/ttyUSB0"; cmd_port_device = "/dev/ttyUSB1";
lrwxrwxrwx 1 root root 0 Aug 10 09:46 video0 -> ../../devices/pci0000:00/0000:00:1 4.0/usb1/1-2/1-2.3/1-2.3:1.0/video4linux/video0
lrwxrwxrwx 1 root root 0 Aug 10 09:46 video1 -> ../../devices/pci0000:00/0000:00:1 4.0/usb1/1-2/1-2.4/1-2.4:1.0/video4linux/video1
其中的 1-2 1-3 就是固化的编号，根据这样的编号通过字符串分析找到对应的 video0 ttyUSB0….
代码方案一： #include <math.h> #include <iostream> #include <fstream> #include <cstdlib> #include <cstring>
lrwxrwxrwx 1 root root 0 Aug 10 09:32 video0 -> ../../devices/pci0000:00/0000:00:1 1.0/0000:02:03.0/usb1/1-1/1-1:1.0/video4linux/video0 lrwxrwxrwx 1 root root 0 Aug 10 09:34 video1 -> ../../devices/pci0000:00/0000:00:1 1.0/0000:02:03.0/usb1/1-2/1-2:1.0/video4linux/video1 */
i++;
ch = result[i]; ch1 = result[i+1]; if(ch =='-' && ch1 =='>')
{ std::cout<<result[i-7]<<result[i-6]<<result[i-5]<<result[i-4]<<result[i-3]
<<result[i-2]<<","<<result[i-2]<<"->"; std::cout<<result[i+45]<<result[i+46]<<result[i+47]<<result[i+48]<<re
short ids[2]; autoDeviceId(ids);
printf("HAHA I FIND left and right VIDEO DEVICES,left id1=%d,right id2=%d",ids[ 0],ids[1]);
return 0; } 代码方案二：
or：
int get_ttyUSB_id(constchar* physical_id){ charcmd[256] = "ls -l /sys/class/tty/ | grep "; strcat(cmd, physical_id); FILE *fp = popen(cmd, "r"); charbuf[256]; fgets(buf, sizeof(buf), fp); pclose(fp); printf("port_id:%s, %s\n", physical_id, buf);
ls -l /sys/class/video4linux/ lrwxrwxrwx 1 root root 0 Aug 10 09:43 ttyUSB0 -> ../../devices/pci0000:00/0000:00 :14.0/usb1/1-3/1-3:1.0/ttyUSB0/tty/ttyUSB0 lrwxrwxrwx 1 root root 0 Aug 10 09:43 ttyUSB1 -> ../../devices/pci0000:00/0000:00 :14.0/usb1/1-4/1-4:1.0/ttyUSB1/tty/ttyUSB1
if(strcmp(str,"/1-2/1-2.3")==0) {
ids[0]=(short) ((char)result[i-2] -'0'); j++; if(j==2) {return true;} } else if(strcmp(str,"/1-2/1-2.4")==0) { ids[1]=(short)( (char)result[i-2] -'0');
Ubuntu 命令 #ls -l /sys/class/video4linux/ #ls -l /sys/class/tty/ 得到类似如下的输出： lrwxrwxrwx 1 root root 0 Aug 10 09:46 video0 -> ../../devices/pci0000:00/0000:00:1 4.0/usb1/1-2/1-2.3/1-2.3:1.0/video4linux/video0 lrwxrwxrwx 1 root root 0 Aug 10 09:46 video1 -> ../../devices/pci0000:00/0000:00:1 4.0/usb1/1-2/1-2.4/1-2.4:1.0/video4linux/video1
while(fgets(buf_ps, 1024, ptr)!=NULL) {
strcat(result, buf_ps); if(strlen(result)>1024)
break;
} pclose(ptr); ptr = NULL; } else { printf("popen %s error\n", ps); } }
j++; if(j==2) {return true;} }

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ubuntu_linux安装在USB盘中作为系统引导盘

ubuntu_linux安装在USB盘中作为系统引导盘

在USB盘上搭建Linux + Apache+Mysql+Php/perl环境准备一个4G以上的USB盘，插入计算机1、访问/download/desktop2、点击start download, 下载Ubuntu linux到本地硬盘，文件名ubuntu-12.04-desktop-i386大约，大小约700MB。

4、点击download Universal-USB-Installer-1.8.9.6.exe,下载Universal-USB-Installer-1.8.9.6.exe到本地5、运行该程序，参照/download/help/create-a-usb-stick-on-windows进行设置，并完成。

6、安装结束后退出，并拔出USB用自己的账户接入互联网。

7、重启计算机，并用该USB盘引导系统，即可进入ubuntu linux系统。

8、进入Ubuntu linux 后，左边有一列工具条，选择第一个dash home9、在上面的搜索栏中输入terminal, 如果系统已经安装了模拟终端，则会在下面显示该软件图标名称等。

如果没有安装，则显示：Sorry, there is nothing that matches your search.10、如果没有安装terminal，进入左边工具栏中的Ubuntu Softeware Center，在上面的菜单栏中找到All software, 选择Provided by Ubuntu，在右边搜索栏中输入terminal, 在下面会显示可以选择的terminal模拟终端软件，如：Terminal（gnone-terminal）….点击该软件，在右边找到install，点击可以开始安装。

11、安装结束后，在左边工具栏中可以找到terminal，点击进入。

12、在terminal中输入ifconfig, 在显示的内容找到：Inet Addr: 222.29.246.?字样，这就是本机的IP地址，记下来，供后续使用。

在linux下获取硬盘序列号

在linux下获取硬盘序列号

在linux下获取硬盘序列号⽅法⼀:hwinfo --disk例⼦sda$ hwinfo --disk28: IDE 00.0: 10600 Disk[Created at block.245]Unique ID: 3OOL.XxO12I_gR04Parent ID: _+Pw.BwJ_Mdxf5A3SysFS ID: /class/block/sdaSysFS BusID: 0:0:0:0SysFS Device Link: /devices/pci0000:00/0000:00:0f.0/ata1/host0/target0:0:0/0:0:0:0Hardware Class: diskModel: "KINGSTON RBUSMS1"Vendor: "KINGSTON"Device: "RBUSMS1"Revision: "61D1"Driver: "ahci", "sd"Driver Modules: "ahci", "sd_mod"Device File: /dev/sdaDevice Files: /dev/sda, /dev/disk/by-id/ata-KINGSTON_RBUSMS180S364GJ_50026B72821EF73A, /dev/disk/by-path/pci-0000:00:0f.0-ata-1, /dev/disk/by-id/wwn-0x50026b72821ef73a Device Number: block 8:0-8:15BIOS id: 0x80Drive status: no mediumConfig Status: cfg=new, avail=yes, need=no, active=unknownAttached to: #14 (SATA controller)例⼦nvmegeneric@generic-PC:/$ hwinfo --disk14: PCI 00.0: 10600 Disk[Created at block.245]Unique ID: wLCS.FG_TsB9ija0Parent ID: B35A.iiLHwdxfB34SysFS ID: /class/block/nvme0n1SysFS BusID: nvme0SysFS Device Link: /devices/pci0000:00/0000:00:01.0/0000:02:00.0/nvme/nvme0Hardware Class: diskModel: "Disk"Vendor: pci 0x1df5Device: pci 0x1202SubVendor: pci 0x1df5SubDevice: pci 0x1202Driver: "nvme"Driver Modules: "nvme"Device File: /dev/nvme0n1Device Files: /dev/nvme0n1, /dev/disk/by-id/nvme-kimtigo_SSD_256GB_S780100G00110S, /dev/disk/by-path/pci-0000:02:00.0-nvme-1, /dev/disk/by-id/nvme-eui.0100000000000000 Device Number: block 259:0Drive status: no mediumConfig Status: cfg=new, avail=yes, need=no, active=unknownAttached to: #2 (Non-Volatile memory controller)⽅法⼆:cat /sys/class/block/sda/device/wwid或者cat/sys/class/block/nvme0n1/device/serialsda$ cat /sys/class/block/sda/device/wwidt10.ATA KINGSTON RBUSMS180S364GJ 50026B72821EF73Anvmecat /sys/class/block/nvme0n1/device/serialS780100G00110S⽅法三:udevadm info --query=all --name=/dev/xxx |grep -wID_SERIAL_SHORT$ udevadm info --query=all --name=/dev/sda |grep -w ID_SERIAL_SHORTE: ID_SERIAL_SHORT=50026B72821EF73A$ udevadm info --query=all --name=/dev/nvme0n1 |grep -w ID_SERIAL_SHORTE: ID_SERIAL_SHORT=S780100G00110S⽅法四:lsblk -n --nodeps -o name,serial /dev/xxx $ lsblk -n --nodeps -o name,serial /dev/sdasda 50026B72821EF73Alsblk -n --nodeps -o name,serial /dev/nvme0n1nvme0n1 S780100G00110S。

TL-WDN5200H无线usb网卡在Linux上的使用

TL-WDN5200H无线usb网卡在Linux上的使用

TL-WDN5200H⽆线usb⽹卡在Linux上的使⽤买了个TL-WDN5200H⽆线usb⽹卡,但是发现它居然不⽀持Linux,但是我有时需要在Linux上使⽤,这就尴尬了.于是到⽹上搜索资料,终于解决了这个问题.1. ⾸先编译安装:根据它的README⽂档，Ubuntu下可以这样安装：sudo apt-get install dkmsDRV_NAME=rtl8821CUDRV_VERSION=5.2.5.3sudo mkdir /usr/src/${DRV_NAME}-${DRV_VERSION}git archive master | sudo tar -x -C /usr/src/${DRV_NAME}-${DRV_VERSION}sudo dkms add -m ${DRV_NAME} -v ${DRV_VERSION}sudo dkms build -m ${DRV_NAME} -v ${DRV_VERSION}sudo dkms install -m ${DRV_NAME} -v ${DRV_VERSION}# 下载⼯程git clone https:///whitebatman2/rtl8821CU.gitcd rtl8821CUmakesudo make installsudo modprobe 8821cu2. 使⽤lsusb命令观察⽹卡的编号(插拔前后的变化)Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hubBus 001 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical MouseBus 001 Device 002: ID 04d9:0223 Holtek Semiconductor, Inc.Bus 001 Device 013: ID 0bda:1a2b Realtek Semiconductor Corp.Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubTL-WDN5200H的编号就是0bda:1a2b.3. 切换usb⽹卡的模式为⽆线⽹卡模式:sudo usb_modeswitch -KW -v 0bda -p 1a2b输出如下:Take all parameters from the command line* usb_modeswitch: handle USB devices with multiple modes* Version 2.5.2 (C) Josua Dietze 2017* Based on libusb1/libusbx! PLEASE REPORT NEW CONFIGURATIONS !DefaultVendor= 0x0bdaDefaultProduct= 0x1a2bStandardEject=1Look for default devices ...found USB ID 1d6b:0003found USB ID 093a:2510found USB ID 04d9:0223found USB ID 0bda:1a2bvendor ID matchedproduct ID matchedfound USB ID 1d6b:0002Found devices in default mode (1)Access device 013 on bus 001Get the current device configuration ...Current configuration number is 1Use interface number 0with class 8Use endpoints 0x0b (out) and 0x8a (in)USB description data (for identification)-------------------------Manufacturer: RealtekProduct: DISKSerial No.: not provided-------------------------Sending standard EJECT sequenceLooking for active drivers ...OK, driver detachedSet up interface 0Use endpoint 0x0b for message sending ...Trying to send message 1 to endpoint 0x0b ...OK, message successfully sentRead the response to message 1 (CSW) ...Response successfully read (13 bytes), status 1 Trying to send message 2 to endpoint 0x0b ...OK, message successfully sentRead the response to message 2 (CSW) ...Response successfully read (13 bytes), status 0 Trying to send message 3 to endpoint 0x0b ...Sending the message returned error -1. Try to continue Read the response to message 3 (CSW) ...Device seems to have vanished after reading. Good. Device is gone, skip any further commands-> Run lsusb to note any changes. Bye!惊喜的发现⽆线可⽤了!。

Ubuntu系统如何查看硬件配置信息

Ubuntu系统如何查看硬件配置信息

Ubuntu系统如何查看硬件配置信息查看ubuntu硬件信息 1, 主板信息 .查看主板的序列号 -------------------------------------------------- #使⽤命令 dmidecode | grep -i 'serial number' #查看板卡信息 cat /proc/pci -------------------------------------------------- 2, cpu信息 -------------------------------------------------- #通过/proc⽂件系统 1) cat /proc/cpuinfo #通过查看开机信息 2) dmesg | grep -i 'cpu' # 3)dmidecode -t processor -------------------------------------------------- 3, 硬盘信息 -------------------------------------------------- #查看分区情况 fdisk -l #查看⼤⼩情况 df -h #查看使⽤情况 du -h # hdparm -I /dev/sda # dmesg | grep sda -------------------------------------------------- 4, 内存信息 -------------------------------------------------- 1) cat /proc/meminfo 2) dmesg | grep mem 3) free -m 4) vmstat 5) dmidecode | grep -i mem -------------------------------------------------- 5, ⽹卡信息 -------------------------------------------------- 1) dmesg | grep -i 'eth' 2) cat /etc/sysconfig/hwconf | grep -i eth 3) lspci | grep -i 'eth' -------------------------------------------------- 6, ⿏标键盘和USB信息 查看键盘和⿏标：cat /proc/bus/input/devices 查看USB设备：cat /proc/bus/usb/devices 查看各设备的中断请求(IRQ):cat /proc/interrupts 7, 显卡信息 -------------------------------------------------- 1)lspci |grep -i 'VGA' 2)dmesg | grep -i 'VGA' -------------------------------------------------- 8, 声卡信息 -------------------------------------------------- 1)lspci |grep -i 'VGA' 2)dmesg | grep -i 'VGA' -------------------------------------------------- 7, 其他命令 .⽤硬件检测程序kuduz探测新硬件：service kudzu start ( or restart) .dmesg (查看所有启动时检测到的硬件信息) .lspci (显⽰外设信息, 如usb，⽹卡等信息) .cat /etc/sysconfig/hwconf .mpstat 8, 需要⼿动安装的⼯具 lshw,hwinfo,hal-device-manager。