LinuxÉÏÍø¿¨É趨
EthtoolÊÇÓÃÓÚ²éѯ¼°ÉèÖÃÍø¿¨²ÎÊýµÄÃüÁî¡£
¸ÅÒª£º
ethtool ethX //²éѯethXÍø¿Ú»ù±¾ÉèÖÃ
ethtool –h //ÏÔʾethtoolµÄÃüÁî°ïÖú(help)
ethtool –i ethX //²éѯethXÍø¿ÚµÄÏà¹ØÐÅÏ¢
ethtool –d ethX //²éѯethXÍø¿Ú×¢²áÐÔÐÅÏ¢
ethtool –r ethX //ÖØÖÃethXÍø¿Úµ½×ÔÊÊӦģʽ
ethtool –S ethX //²éѯethXÍø¿ÚÊÕ·¢°üͳ¼Æ
ethtool –s ethX [speed 10|100|1000]\ //ÉèÖÃÍø¿ÚËÙÂÊ10/100/1000M
[duplex half|full]\ //ÉèÖÃÍø¿Ú°ë/È«Ë«¹¤
[autoneg on|off]\ //ÉèÖÃÍø¿ÚÊÇ·ñ×ÔÐÉÌ
[port tp|aui|bnc|mii]\ //ÉèÖÃÍø¿ÚÀàÐÍ
[phyad N]\
[xcvr internal|exteral]\
[wol p|u|m|b|a|g|s|d...]\
[sopass xx:yy:zz:aa:bb:cc]\
[msglvl N]
¾ÙÀý£º
1£©[root@linux /]# ethtool eth1
Settings for eth1:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
Ïà¹ØÎĵµ£º
linuxµÄÇý¶¯¾ÍÊǸö×Ö·ûÉ豸£¬¿ÉÒÔÓÃread write ioctl mmap²Ù×÷£¬Í¨¹ý/dev/fbx¿ÉÒÔÏñÎļþÒ»ÑùÖ±½Ó¶Áд
½ØÆÁdd if=/dev/fb0 of=snapshot
»Ö¸´cat snapshot > /dev/fb0
¿ªÔ´µÄÓÐfbgrab¹¤¾ß£¬²»¹ýÊÇÉú³ÉpngÎļþ£¬ÎÒ×Ô¼ºÐ´ÁËÒ»¸öÉú³ÉbmpÎļþµÄ¹¤¾ß½Ðfbcap£¬Â¼ÖƳÉavi¸ñʽ£¬Í¨¹ýsocket»òserial°ÑÉ豸µÄ²Ù×÷·¢Ë͵½hostÉÏ£º£ ......
ÒÔϵÄһЩÎÄ×ÖÖ÷ÒªÀ´Ô´ÓÚkhg£¬johnsonmµÄWrite linux device driver£¬Brennan's Guide to Inline Assembly£¬The Linux A-Z£¬»¹ÓÐÇ廪BBSÉϵÄÓйØdevice driverµÄһЩ×ÊÁÏ. ÕâЩ×ÊÁÏÓеÄÒѾ¹ýʱ£¬ÓеĻ¹ÓÐһЩ´íÎó£¬ÎÒÒÀ¾Ý×Ô¼ºµÄÊÔÑé½á¹û½øÐÐÁËÐÞÕý.
Ò»¡¢Linux device driver µÄ¸ÅÄî
ϵͳµ÷ÓÃÊDzÙ× ......
£¨1£©exit()Óë_exit()Çø±ð£º _exit()Ö±½Óʹ½ø³ÌÍ£Ö¹ÔËÐУ¬Çå³ýÆ÷ʹÓõÄÄÚ´æ¿Õ¼ä£¬Ïú»ÙÆäÔÚÄÚºËÖеĸ÷ÖÖÊý¾Ý½á¹¹¡£
exit()º¯ÊýÔÚµ÷ÓÃexitϵͳµ÷ÓÃ֮ǰҪ¼ì²éÎļþµÄ´ò¿ªÇé¿ö£¬°ÑÎļþ»º³åÇøÖеÄÄÚÈÝд»ØÎļþ£¬ÇåÀíI/O»º³å£¨ÍƼöʹÓÃÕâ¸öº¯Êý£©
£¨2£©waitpid
#include <sys/ ......
linux´®¿Ú±à³Ì£¨Òªµã×ܽᣩ ÊÕ²Ø
´®¿Ú±à³Ì
²éѯӲ¼þµÄ·½Ê½£º²éѯ·½Ê½¡¢ÖжϷ½Ê½¡¢DMA·½Ê½¡£´®¿ÚºÜ¶àÊÇʹÓÃÖжϷ½Ê½£¬ÕâÖÖ·½Ê½Ò»°ãÀ´½²¶ÔCPU±È½ÏÓÐЧ¡£
UARTµÄ²Ù×÷Ö÷Òª°üÀ¨ÒÔϼ¸¸ö²¿·Ö£º
Êý¾Ý·¢ËÍ£»Êý¾Ý½ÓÊÜ£»²úÉúÖжϣ»²úÉú²¨ÌØÂÊ£»Loopbackģʽ£»ºìÍâģʽ£»×Ô¶¯Á÷¿Øģʽ£»
&n ......
VirtualBox¹Ù·½ÍøÕ¾£ºhttp://www.virtualbox.org/
ÒÔÏÂΪubuntu Ϊƽ̨µÄ°²×°¡¢ÅäÖá¢Ê¹Óã¬ÆäʵÔÚ¸÷¸ö·¢ÐаæÖеÄʹÓö¼²î²»¶à£¬Ö»ÊÇÔÚÏÂÔصÄʱºòÐèÒªÏÂÔØÏà¶ÔÓ¦Ö÷ϵͳƽ̨µÄ°²×°°ü¼´¿É¡£
»·¾³ÐèÇó£º
VirtualBoxÐèÒªker ......