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linuxÏÂcÓïÑÔÁ¬½ÓmysqlÊý¾Ý¿â

ÔÚFC8ÖÐĬÈϰ²×°µÄÓÐmysql£¬Ã»Óеϰ¿ÉÒԺܷ½±ãµÄ°²×°Ï¡£
ĬÈϵÄmysqlµÄincludeÎļþĿ¼ÔÚ/usr/include/mysql
ĬÈϵÄmysqlµÄlibÎļþ¼ÐÔÚ/usr/lib/mysql
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ÎҵIJâÊÔÓõÄC´úÂëΪ£º
££include <stdio.h>
#include <stdlib.h>
#include <mysql.h>
#define CONN_HOST "localhost"
#define CONN_USER "root"
#define CONN_PASS "123"
#define CONN_DB "test"
int main()
{
    MYSQL *conn;
    char *server =  CONN_HOST;
    char *user = CONN_USER;
    char *pass = CONN_PADD;
    char *database = CONN_DB;
    conn = mysql_init(NULL);
    if(!mysql_real_connect(conn,server,user,pass,database,0,NULL,0))
    {
       fprintf(stderr,"%s\n",mysql_error(conn));
       exit(1);
    }
    else
 &nb ......

linuxÏÂcÓïÑÔÁ¬½ÓmysqlÊý¾Ý¿â

ÔÚFC8ÖÐĬÈϰ²×°µÄÓÐmysql£¬Ã»Óеϰ¿ÉÒԺܷ½±ãµÄ°²×°Ï¡£
ĬÈϵÄmysqlµÄincludeÎļþĿ¼ÔÚ/usr/include/mysql
ĬÈϵÄmysqlµÄlibÎļþ¼ÐÔÚ/usr/lib/mysql
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ÎҵIJâÊÔÓõÄC´úÂëΪ£º
££include <stdio.h>
#include <stdlib.h>
#include <mysql.h>
#define CONN_HOST "localhost"
#define CONN_USER "root"
#define CONN_PASS "123"
#define CONN_DB "test"
int main()
{
    MYSQL *conn;
    char *server =  CONN_HOST;
    char *user = CONN_USER;
    char *pass = CONN_PADD;
    char *database = CONN_DB;
    conn = mysql_init(NULL);
    if(!mysql_real_connect(conn,server,user,pass,database,0,NULL,0))
    {
       fprintf(stderr,"%s\n",mysql_error(conn));
       exit(1);
    }
    else
 &nb ......

linuxÏÂcÓïÑÔÁ¬½ÓmysqlÊý¾Ý¿â

ÔÚFC8ÖÐĬÈϰ²×°µÄÓÐmysql£¬Ã»Óеϰ¿ÉÒԺܷ½±ãµÄ°²×°Ï¡£
ĬÈϵÄmysqlµÄincludeÎļþĿ¼ÔÚ/usr/include/mysql
ĬÈϵÄmysqlµÄlibÎļþ¼ÐÔÚ/usr/lib/mysql
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ÎҵIJâÊÔÓõÄC´úÂëΪ£º
££include <stdio.h>
#include <stdlib.h>
#include <mysql.h>
#define CONN_HOST "localhost"
#define CONN_USER "root"
#define CONN_PASS "123"
#define CONN_DB "test"
int main()
{
    MYSQL *conn;
    char *server =  CONN_HOST;
    char *user = CONN_USER;
    char *pass = CONN_PADD;
    char *database = CONN_DB;
    conn = mysql_init(NULL);
    if(!mysql_real_connect(conn,server,user,pass,database,0,NULL,0))
    {
       fprintf(stderr,"%s\n",mysql_error(conn));
       exit(1);
    }
    else
 &nb ......

dzÎöLinuxÏÂcoreÎļþ

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ÈçºÎÀûÓÃcoreÎļþÕÒµ½³öÏÖ±ÀÀ£µÄµØ·½¡£
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µ±Ò»¸ö³ÌÐò±ÀÀ£Ê±£¬ÔÚ½ø³Ìµ±Ç°¹¤×÷Ŀ¼µÄcoreÎļþÖи´ÖÆÁ˸ýø³ÌµÄ´æ´¢Í¼Ïñ¡£core
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SIGABRT
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ÖÕÖ¹w/core
SIGBUS
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ÖÕÖ¹w/core
SIGEMT
Ó²¼þ¹ÊÕÏ
 
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ÖÕÖ¹w/core
SIGFPE
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  .       .
  .    ......

LINUXϹÒÔØusb

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1.USBÒÆ¶¯´æ´¢É豸ͨ³£±»Ê¶±ðΪsda1£¬¾ßÌå¿ÉÒÔͨ¹ýfdisk -lÃüÁî²éѯ¡£Ò»°ãÍâ¹ÒµãµÄ×ÓĿ¼¶¼Êǽ¨Á¢ÔÚ/mntÀïÃæµÄ ʹÓÃmkdir /mnt/usb ½¨Á¢Ò»¸ö¹ÒÔØµã£¬È»ºómount /dev/sda1 /mnt/usb ½øÐйÒÔØ
2.1. Ïȱð²åUÅÌ£¬/sbin/lsmod¿´ÊÇ·ñÓÐusb-storage¡£Èç¹ûûÓеϰ£º
cd /lib/modules/2.4.20-8/kernel/drivers/usb
           for v in *.o storage/*.o ;
                   do /sbin/insmod $v ; done
    2. ÕâÀïÔÙ/sbin/lsmod£¬Ó¦¸ÃÓÐusbcore¡¢usb-ohci£¨»òusb-uhci£¬¸ù¾ÝÖ÷°åоƬ×é¶ø²»Í¬£©¡¢usb-storage¡¢scsi_modµÈ¡£Æä   ÖР    usb-storageµÄ״̬Ӧ¸ÃΪ £¨unused£©¡£
3. ²åÈëUÅÌ£¬²»Í£µÄ/sbin/lsmod£¬ÕâÆÚ¼äusb-storageµÄ״̬ӦΪInitializing£¬³ÖÐøÊ±¼ä´óÔ¼ ......

ÔÚlinux gcc 64λƽ̨±àÒ붯̬Á´½Ó¿âʱ³öÏÖµÄÎÊÌâ

ÔÚ32λƽ̨ÉϱàÒ붯̬¿âûÓÐɶÎÊÌ⣬Äõ½x86_64λƽ̨ÉϱàÒëʱ³öÏÖÁËÎÊÌâ¡£
relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC
ÕÕ×ÅÌáʾ±àÒë´úÂëµÄʱºò¼ÓÈë -fPICÑ¡Ïî¾Íok.
......

LINUXϵÄһЩ¼ÒѹËõ°²×°ÃüÁî

ÔÚfedoraϽâѹ.debÎļþ(û°²×°dpkg):
ar p filename.deb data.tar.gz | tar zxvf -
ÆäËüѹËõÎļþµÄ½âѹ
#tar xv file.a
#uncompress file.Z
#gunzip file.gz
#bunzip2 file.bz2
#tar xvZf file.tar.Z 
#compress -dc file.tar.Z | tar xvf -
#tar xvzf file.tar.gz 
#gzip -dc file.tar.gz | tar xvf -
#tar xvIf file.tar.bz2
#bzip2 -dc file.tar.bz2 | xvf -
#gzip -dc file.cgz | cpio -div
#cpio -div file.cpio
#cpio -divc file.cpio
#rpm -ivh file.rpm
#rpm2cpio file.rpm | cpio -div
#dpkg -i file.deb
#dpkg-deb --fsys-tarfile file.deb | tar xvf - ar p file.deb data.tar.gz | tar xvzf -
#unzip file.zip
#.install dpkg -i file.deb
#exrtact dpkg-deb --fsys-tarfile file.deb | tar xvf -
#ar p file.deb data.tar.gz | tar xvzf - 
#unzip file.zip
#bzip2 -d myfile.tar.bz2 | tar xvf
#tar xvfz myfile.tar.bz2
......

LinuxÏÂUSB´ÓÉ豸ʹÓÃgadget API

Ò»¡¢USB´ÓÉ豸Çý¶¯½éÉÜ
USB×ÜÏßÉÏÖ÷ÒªÓÐÈýÀàÉ豸£ºÖ÷¿ØÖÆÆ÷£¨Host Controller£¬ such as
EHCI¡¢UHCI¡¢OHCI£©¡¢¼¯Ï߯÷£¨hub£©ºÍÉ豸£¨device£©¡£Host controller£¨HC£©¸ºÔð×ÜÏߵĹÜÀí
£¬
ÊÇ×ÜÏßµÄÖ¸»Ó¹Ù£¬×ÜÏßÉÏÒ»Çд«Êä¶¼ÊÇÓÉHC·¢ÆðµÄ£¬Ö§³ÖOTGµÄDeviceÒ²ÄÜ·¢Æð´«Ê䣻HubÊÇ×ÜÏߵĽڵ㣬ÓÃÀ´À©Õ¹×ÜÏßÉϿɽÓÈëÉ豸µÄÊýÁ¿£¬¶ÔÓÚÇý
¶¯À´ËµÊÇ͸Ã÷µÄ£»Device¾ÍÊǸ÷ÖÖ¸÷ÑùµÄÉ豸ÁË£¬Ã¿¸öÉ豸¶¼ÓÐ×Ô¼ºµÄ¹¦ÄÜ£¬±ÈÈçUÅÌ¡¢USBÉãÏñÍ·µÈµÈ¡£
LinuxÏÂÖ÷»ú¶ËUSBÉ豸µÄÇý¶¯£¨device driver£©±àдµÄ×ÊÁÏÓкܶ࣬LDD3ÖÐÓÐÏàÓ¦µÄ½éÉÜ¡£Ö÷ÒªÊÇͨ¹ýÄÚºËÖÐUSB
coreÕâ¸öÄ£¿éÓëÉ豸½»»¥¡£±¾ÎÄÖ»½éÉÜÔËÐÐLinuxµÄǶÈëʽUSBÉ豸Çý¶¯µÄ±àд¡£ÒòΪHost¶ËÒѾ­
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ÓÃÁËdevice driverÒ»´Ê£¬ÎªÁ˱ÜÃâ»ìÏý£¬Ê¹ÓÃUSB gadget driverÒ»´Î±íʾ´ÓÉ豸Çý¶¯¡£In USB protocol
interactions, the device driver is the master (or client driver) and the
gadget driver is the slave (or function driver).
Linux USB gadget driver API¶¨ÒåÁËÒ»¸öͨÓõÄgadget driverµÄ½Ó¿Ú£¬gadget
driverͨ¹ýAPIÓëµ×²ãUSB controller driverͨÐÅ¡£¸ÃAPIÆÁ±ÎÁ˵ײãÓ²¼þµÄ²»Í¬£¬Ê¹gadget
driver×¢ÖØ¹¦ÄܵÄʵÏÖ£¬¾¡Á ......
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