Linux

Today, the system is upgraded, and the experience of ubuntu8.10 is very good. But found a serious problem. Is that Firefox play flash only images, no sound. Found a lot on the Internet. Many of them are system sound support or mixed-tone problems.

If you want to view the detailed parameters of a process under Unix/linux, you can use the command: Ps-axuww|grep It should be noted, however, that under Solaris, there are two versions of PS: one is/usr/bin/ps; one is/usr/bin/ps.

static void Device_list (void){snd_ctl_t *handle;int card, err, Dev, idx;snd_ctl_card_info_t *info;snd_pcm_info_t *pcminfo;Snd_ctl_card_info_alloca (&info);Snd_pcm_info_alloca (&pcminfo);card =-1;if (Snd_card_next (&card) Error (_ ("No soundcards

Today with the gedit feeling very good, although the beginning of the time to feel the use of the TAB key to play space too troublesome, there is no way to find a way, at that time did not have nets, I groped myself, edit->preferences, here to find

The kernel has finally been edited and upgraded, and it was intended to continue to learn. But in the wife's encouragement, feel or stop to summarize the better, so that they are helpful to others. 0. Environment Introduction I installed the Ubuntu-

Linux system provides the input subsystem, keys, touch screen, keyboard, mouse and other input can use input interface function to achieve device-driven, so the 12.1~12.2 section of the button and touch screen device driver can be used as input

Normal 0 7.8 lb 0 2 false false MicrosoftInternetExplorer4/* Style definitions/table. msonormaltable {mso-style-name: plain form; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; Mso-style-parent: ""; mso-padding-alt:0cm 5.

The Linux kernel defines different priority levels for different driver load sequences, as shown in the following macro: Include/linux/init.h #define Pure_initcall (FN) __define_initcall ("0", fn,1)#define Core_initcall (FN) __define_initcall ("1",

Show environment variables: #echo $PAHT Summary of common methods for modifying Linux environment variables (red for Paths to add): 1, #PATH = $PATH:/etc/apache/bin, this method is only valid for the current, that is, when you log off the system

Original website: http://www.ibm.com/developerworks/cn/linux/l-cn-linuxkernelint/index.html Brief Introduction: This article has carried on the thorough analysis and the discussion to the interrupt system, mainly includes the interruption

I met this problem myself and spent some time combining blog http://blog.csdn.net/hanpengyu/article/details/6754177 to refine the following solution: First go to the Linux system in VMware, and then do the following: 1, click "View"--and then

Create File "VI"First, the order to enter VIVI FileName: Open or create a new file and place the cursor at the beginning of the first lineVI +n FileName: Open the file and place the cursor at the beginning of nthVI + FileName: Open the file and

I. Analysis of core documents 1.1 Find core file directory, start Mycrash:mycrash 1.2 View crash stack information: BT 1.3 Disassembly code of the crash point, line 10: dis-l extract_http_info+73 ii. Analysis of source files Hinfo.ko 2.1

first, the operating level of Linux Linux Run Level: Default Run Level is 3 or 50--halt1--Single User mode2--multiuser mode, no NFS service3--multiuser mode with NFS service4--system retention level, not used5--x11, same 3, but using x

(Reprinted from Http://blog.sina.com.cn/s/blog_6b3765230100lazj.html) Ulimit-c output is 0, Coredump is not openUlimit-c output if unlimited, then Coredump is turned onYou can open it by Ulimit-c Unlimited,You can turn it off by Ulimit-c 0.

Some time ago read the "deep understanding of the Linux kernel" to the memory management part of it spent a lot of time, but there are still a lot of questions that are not clear and have recently taken some time to review, documenting your own

The recent colleague's program design process uses the Linux signal mechanism, thus has caused me to the Linux signal mechanism ponder. Signal mechanism is a very common interprocess communication mechanism in Linux, and many people do not consider

Kill-hup Process Number Description: Hup signal is sighup. Sending a sighup signal to a background process allows the background process to reread the configuration file. making ISO file commands on LinuxDD If=/dev/cdrom

First get the kernel source www.kernel.org 1./home/under the home Linux through the wget or Crul or directly download the kernel source to this folder and decompression. 2. Kernel configuration Make config (start from scratch) Make Defconfig

the role of the library In general, there are two reasons for the existence of the library, one is the reuse of code, the other is the separation of declaration and implementation. The use of similar functions to encapsulate the module into a