LinuxµÄµÚÒ»¸ö½ø³Ì£ºinit£¨1£©
Òý×Ô£ºhttp://server.it168.com/a2009/0309/267/000000267918.shtml
4.1.7 LinuxµÄµÚÒ»¸ö½ø³Ì£ºinit£¨1£©
initÊÇLinuxϵͳִÐеĵÚÒ»¸ö½ø³Ì£¬½ø³ÌIDΪ1£¬ÊÇϵͳËùÓнø³ÌµÄÆðµã£¬Ö÷ÒªÓÃÀ´Ö´ÐÐһЩ¿ª»ú³õʼ»¯½Å±¾ºÍ¼àÊÓ½ø³Ì¡£LinuxϵͳÔÚÍê³ÉÄÚºËÒýµ¼ÒÔºó¾Í¿ªÊ¼ÔËÐÐinit³ÌÐò£¬init³ÌÐòÐèÒª¶ÁÈ¡ÅäÖÃÎļþ/etc/inittab¡£inittabÊÇÒ»¸ö²»¿ÉÖ´ÐеÄÎı¾Îļþ£¬ËüÓÉÈô¸ÉÐÐÃüÁî×é³É¡£ÔÚRHEL4ϵͳÖУ¬inittabÅäÖÃÎļþµÄÄÚÈÝÈçÏÂËùʾ¡£
#
# inittab This file describes how the INIT process should set up
# the system in a certain run-level.
#
# Author: Miquel van Smoorenburg,
# Modified for RHS Linux by Marc Ewing and Donnie Barnes
#
# Default runlevel. The runlevels used by RHS are:
# 0 - halt (Do NOT set initdefault to this)
# 1 - Single user mode
# 2 - Multiuser, without NFS (The same as 3, if you do not have networking)
# 3 - Full multiuser mode
# 4 - unused
# 5 - X11
# 6 - reboot (Do NOT set initdefault to this)
#
//±íʾµ±Ç°Ä¬ÈÏÔËÐ춱ðΪ5£¬Æô¶¯ÏµÍ³½øÈëͼÐλ¯½çÃæ
id:5:initdefault:
//Æô¶¯Ê±×Ô¶¯Ö´ÐÐ/etc/rc.d/rc.sysinit½Å±¾
# System initialization.
si::sysinit:/etc/rc.d/rc.sysinit
l0:0:wait:/etc/rc.d/rc 0
l1:1:wait:/etc/rc.d/rc 1
l2:2:wait:/etc/rc.d/rc 2
l3:3:wait:/etc/rc.d/rc 3
l4:4:wait:/etc/rc.d/rc 4
//µ±ÔËÐ춱ðΪ5ʱ£¬ÒÔ5Ϊ²ÎÊýÔËÐÐ/etc/rc.d/rc½Å±¾£¬init½«µÈ´ýÆä·µ»Ø
l5:5:wait:/etc/rc.d/rc 5
l6:6:wait:/etc/rc.d/rc 6
//ÔÚÆô¶¯¹ý³ÌÖÐÔÊÐí°´[Ctrl+Alt+Del]ÖØÆôϵͳ
# Trap CTRL-ALT-DELETE
ca::ctrlaltdel:/sbin/shutdown -t3 -r now
# When our UPS tells us power has failed, assume we have a few minutes
# of power left. Schedule a shutdown for 2 minutes from now.
# This does, of course, assume you have powerd installed and your
# UPS connected and working
Ïà¹ØÎĵµ£º
1. HCI²ãÐÒé¸ÅÊö£º
HCIÌṩһÌ×ͳһµÄ·½·¨À´·ÃÎÊBluetoothµ×²ã¡£ÈçͼËùʾ£º
´ÓͼÉÏ¿ÉÒÔ¿´³ö£¬Host Controller Interface(HCI) ¾ÍÊÇÓÃÀ´¹µÍ¨HostºÍModule¡£Hostͨ³£¾ÍÊÇPC£¬ ModuleÔòÊÇÒÔ¸÷ÖÖÎïÀíÁ¬½ÓÐÎʽ£¨USB,serial,pc-cardµÈ£©Á¬½Óµ½PCÉϵÄbluetooth Dongle¡£
ÔÚHostÕâÒ»¶Ë£ºapplication,SDP,L2capµÈÐÒé ......
£¨L2CAPÐÒé¼ò½é£¬L2CAPÔÚBlueZÖеÄʵÏÖÒÔ¼°L2CAP±à³Ì½Ó¿Ú£©
Ò»£ºL2CAPÐÒé¼ò½é£º
Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼Á¬½Ó¿ØÖƺÍÊÊÅäÐÒé (L2CAP) ΪÉϲãÐÒéÌṩÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àÐÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãÐÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......
ÀýÒ»£º·¢ËÍSignaling Packet£º
Signaling CommandÊÇ2¸öBluetoothʵÌåÖ®¼äµÄL2CAP²ãÃüÁî´«Êä¡£ËùÒÔµÃSignaling CommandʹÓÃCID 0x0001.
¶à¸öCommand¿ÉÒÔÔÚÒ»¸öC-frame£¨control frame£©Öз¢ËÍ¡£
Èç¹ûÒªÖ±½Ó·¢ËÍSignaling Command.ÐèÒª½¨Á¢SOCK_RAWÀàÐ͵ÄL2CAPÁ¬½ÓSocket¡£ÕâÑù²ÅÓлú»á×Ô¼ºÌî³äCommand Code£¬Identi ......
Linux »ã±àÆ÷£º¶Ô±È GAS ºÍ NASM
¶Ô±È GNU Assembler£¨GAS£©ºÍ Netwide Assembler£¨NASM£©
Ram Narayam (rnaraya2@in.ibm.com), Èí¼þ¹¤³Ìʦ, IBM
2007 Äê 11 ÔÂ 05 ÈÕ
±¾ÎĽâÊÍÁ½ÖÖ×îÁ÷ÐÐµÄ Linux® »ã±àÆ÷ —— GNU Assembler£¨GAS£©ºÍ Netwide Assembler£¨NASM£© —— Ö®¼äһЩ±È½ÏÖØÒªµÄÓï·¨ ......
Òý×Ô£ºhttp://server.it168.com/a2009/0309/267/000000267930.shtml
4.3 Linux½ø³Ì¹ÜÀíÃüÁîÏê½â£¨1£©
¡¡¡¡Linux¹ÜÀí½ø³ÌµÄ×îºÃ·½·¨¾ÍÊÇʹÓÃÃüÁîÐÐϵÄϵͳÃüÁî¡£LinuxÏÂÃæµÄ½ø³ÌÉæ¼°µÄÃüÁîÓÐat, bg, fg, kill, crontab, jobs, ps, pstree, top, nice, renice, sleep, nohup¡£
¡¡¡¡1£®atÃüÁ¶¨Ê±ÔËÐÐÃüÁî
¡¡¡¡×÷Ó㺠......