LinuxÏ c ÅжÏÒ»¸öÎļþÊÇ·ñ´æÔÚ
#include <stdio.h>
#include <unistd.h>
#define FOO "foo"
int main(void)
{
if(!access(FOO, F_OK))
{
if(!unlink(FOO))
{
}
else
{
printf("remove %s failed\n", FOO);
}
}
else
{
printf("%s not existed\n", FOO);
}
return 0;
}
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) ΪÉϲãÐÒéÌá¹©ÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àÐÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãÐÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......
ÔÚLinuxÏÂÓÃbuildroot´î½¨mips/armµÄ½»²æ±àÒëÆ½Ì¨
Õâ¸ö±àÒë»·¾³ÊDz»ÄܱàÒëfor¿ªÔ´ÎÞÏß·ÓÉÆ÷µÄ³ÌÐòµÄ£¬ÒòΪÄÚºËÊÇ2.6µÄ
½¨Òé²Î¿¼ÕâÆª: http://www.felix021.com/blog/read.php?1467
ǰÁ½ÌìÂòÁËNetGear WRT614 V9£¬´îÔØµÄÊÇBroadcomµÄ200MHz MIPS´¦ÀíÆ÷¡£
ÓÉÓÚʹÓõÄÊÇ¿ªÔ´²Ù×÷ϵͳLinux£¬ËùÒÔ¿ÉÒÔË¢ÍøÉÏһЩNBµÄ ......
¼¶±ð£º ³õ¼¶
ФÎÄÅô
(xiaowp@263.net
), ˶ʿÑо¿Éú, ±±¾©Àí¹¤´óѧ¼ÆËã»úϵ
2004 Äê 2 ÔÂ 01 ÈÕ
Á÷
ýÌåÖ¸µÄÊÇÔÚÍøÂçÖÐʹÓÃÁ÷¼¼Êõ´«ÊäµÄÁ¬ÐøÊ±»ùýÌ壬ÆäÌØµãÊÇÔÚ²¥·Åǰ²»ÐèÒªÏÂÔØÕû¸öÎļþ£¬¶øÊDzÉÓñßÏÂÔØ±ß²¥·ÅµÄ·½Ê½£¬ËüÊÇÊÓÆµ»áÒé¡¢IPµç»°µÈÓ¦Óó¡ºÏ
µÄ¼¼Êõ»ù´¡¡£RTPÊǽøÐÐʵʱÁ÷ýÌå´«ÊäµÄ±ê×¼ÐÒéº ......
¡¡¡¡ÄãÏë³ÉÖªµÀÈçºÎ³ÉΪһ¸öLinuxÄں˿ª·¢Õßô£¿»òÕßÄãµÄÀÏ°å¸æËßÄ㣬“ȥΪÕâ¸öÉ豸дһ¸öLinuxÇý¶¯¡£“ÕâÆªÎĵµµÄÄ¿µÄ£¬¾ÍÊÇͨ¹ýÃèÊöÄãÐèÒª¾ÀúµÄ¹ý³ÌºÍÌáʾÄãÈçºÎºÍÉçÇøÒ»Æð¹¤×÷£¬À´½Ì¸øÄãΪ´ïµ½ÕâЩĿµÄËùÐèÒªÖªµÀµÄËùÓÐ֪ʶ¡£±¾ÎÄÒ²³¢ÊÔ½âÊÍÉçÇøÎªÊ²Ã´ÕâÑù¹¤×÷µÄһЩÔÒò¡£
¡¡¡¡Äں˼¸ºõÈ«ÊÇÓÃCд³ÉµÄ£¬ÓÐ ......