Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

linux ÖеÄstruct resource

linux¶Ô¹Ò½ÓÔÚ4G×ÜÏß¿Õ¼äÉϵÄÉ豸ʵÌåµÄ¹ÜÀí·½Ê½ -- struct resource /usr/src/linux-2.6.21.5/include/linux/ioport.h struct resource { resource_size_t start; resource_size_t end; const char *name; unsigned long flags; struct resource *parent, *sibling, *child; }; struct resource_list { struct resource_list *next; struct resource *res; struct pci_dev *dev; }; Ò»¸ö¶ÀÁ¢µÄ¹Ò½ÓÔÚcpu×ÜÏßÉϵÄÉ豸µ¥Ôª,Ò»°ã¶¼ÐèÒªÒ»¶ÎÏßÐԵĵØÖ·¿Õ¼äÀ´ÃèÊöÉ豸×ÔÉí,linuxÊÇÔõô¹ÜÀíËùÓеÄÕâЩÍⲿ"ÎïÀíµØÖ··¶Î§¶Î",½ø¶ø¸øÓû§ºÍlinux×ÔÉíÒ»¸ö±È½ÏºÃµÄ¹Û²ì4G×ÜÏßÉϹҽӵÄÒ»¸ö¸öÉ豸ʵÌåµÄ¼ò½à¡¢Í³Ò»¼¶ÁªÊÓͼµÄÄØ? linux²ÉÓÃstruct resource½á¹¹ÌåÀ´ÃèÊöÒ»¸ö¹Ò½ÓÔÚcpu×ÜÏßÉϵÄÉ豸ʵÌå(32λcpuµÄ×ÜÏßµØÖ··¶Î§ÊÇ0~4G): resource->startÃèÊöÉ豸ʵÌåÔÚcpu×ÜÏßÉϵÄÏßÐÔÆðʼÎïÀíµØÖ·; resource->end -ÃèÊöÉ豸ʵÌåÔÚcpu×ÜÏßÉϵÄÏßÐÔ½áβÎïÀíµØÖ·; resource->name ÃèÊöÕâ¸öÉ豸ʵÌåµÄÃû³Æ,Õâ¸öÃû×Ö¿ª·¢ÈËÔ±¿ÉÒÔËæÒâÆð,µ«×îºÃÌùÇÐ; resource->flag ÃèÊöÕâ¸öÉ豸ʵÌåµÄһЩ¹²ÐÔºÍÌØÐԵıê־λ; Ö»ÐèÒªÁ˽âÒ»¸öÉ豸ʵÌåµÄÒÔÉÏ4Ïî,linux¾ÍÄܹ»ÖªÏþÕâ¸ö¹Ò½ÓÔÚcpu×ÜÏßµÄÉϵÄÉ豸ʵÌåµÄ»ù±¾Ê¹ÓÃÇé¿ö,Ò²¾ÍÊÇ[resource->start, resource->end]Õâ¶ÎÎïÀíµØÖ·ÏÖÔÚÊÇ¿ÕÏÐ×ÅÄØ,»¹ÊDZ»Ê²Ã´É豸ռÓÃ×ÅÄØ? linux»á¼á¾ö±ÜÃ⽫һ¸öÒѾ­±»Ò»¸öÉ豸ʵÌåʹÓõÄ×ÜÏßÎïÀíµØÖ·Çø¼ä¶Î[resource->start, resource->end],ÔÙ·ÖÅä¸øÁíÒ»¸öºóÀ´µÄÒ²ÐèÒªÕâ¸öÇø¼ä¶Î»òÕßÇø¼ä¶ÎÄÚ²¿·ÖµØÖ·µÄÉ豸ʵÌå,½ø¶ø±ÜÃâÉ豸֮¼ä³öÏÖ¶Ôͬһ×ÜÏßÎïÀíµØÖ·¶ÎµÄÖظ´ÒýÓÃ,¶øÔì³É¶ÔΨһÎïÀíµØÖ·µÄÉ豸ʵÌå¶þÒåÐÔ. ÒÔÉϵÄ4¸öÊôÐÔ½ö½öÓÃÀ´ÃèÊöÒ»¸öÉ豸ʵÌå×ÔÉí,»òÕßÊÇÉ豸ʵÌå¿ÉÒÔÓÃÀ´×ÔÖεĵ¥Ôª,µ«ÊÇÕâ²»ÊÇlinuxËùÏëµÄ,linuxÐèÒª¹ÜÀí4GÎïÀí×ÜÏßµÄËùÓпռä,ËùÒÔ¹Ò½Óµ½×ÜÏßÉϵÄÐÎÐÎÉ«É«µÄ¸÷ÖÖÉ豸ʵÌå,Õâ¾ÍÐèÒªÁ´ÔÚÒ»Æð,Òò´Ëresource½á¹¹ÌåÌṩÁËÁíÍâ3¸ö³ÉÔ±:Ö¸Õëparent¡¢siblingºÍchild£º·Ö±ðΪָÏò¸¸Çס¢ÐֵܺÍ×Ó×ÊÔ´µÄÖ¸Õë¡£ ÒÔroot sourceΪÀý£¬root->child(*pchild)Ö¸ÏòrootËùÓк¢×ÓÖеØÖ·¿Õ¼ä×îСµÄÒ»¸ö£»pchild->siblingÊÇÐÖµÜÁ´±íµÄ¿ªÍ·£¬Ö¸Ïò±È×Ô¼ºµØÖ·¿Õ¼ä´óµÄÐֵܡ£ ÎïÀíÄÚ´æÒ³ÃæÊÇÖØÒªµÄ×ÊÔ´¡£´ÓÁíÒ»¸ö½Ç¶È¿´£¬µØÖ·¿Õ¼ä±¾Éí£¬»òÕßÎïÀí´æ´¢Æ÷ÔÚµØÖ·¿Õ¼äÖеÄλÖã¬Ò²ÊÇÒ»ÖÖ×ÊÔ´£¬Ò²Òª¼ÓÒÔ¹ÜÀí -- resource¹ÜÀíµØÖ·¿Õ¼ä×ÊÔ´¡£ ÄÚºËÖÐÓÐÁ½¿ÃresourceÊ÷£¬Ò»¿ÃÊÇiomem_resour


Ïà¹ØÎĵµ£º

ʵսLinux Bluetooth±à³Ì£¨ËÄ£© L2CAP²ã±à³Ì

£¨L2CAPЭÒé¼ò½é£¬L2CAPÔÚBlueZÖеÄʵÏÖÒÔ¼°L2CAP±à³Ì½Ó¿Ú£©
Ò»£ºL2CAPЭÒé¼ò½é£º
Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼­Á¬½Ó¿ØÖƺÍÊÊÅäЭÒé (L2CAP) ΪÉϲãЭÒéÌṩÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àЭÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãЭÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......

ʵսLinux Bluetooth±à³Ì(Áù) L2CAP±à³ÌʵÀý

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 ......

LinuxÉ豸ģÐÍÖ®input×ÓϵͳÏê½â

Ò»£ºÇ°ÑÔ
×î½üÔÚÑо¿androidµÄsensor driver£¬Ö÷ÒªÊÇE-compass£¬ÆäÖÐÓõ½ÁËLinux input×Óϵͳ.ÔÚÍøÉÏÒ²¿´Á˺ܶàÕâ·½ÃæµÄ×ÊÁÏ£¬¸Ð¾õ»¹ÊÇÕâƪ·ÖÎöµÄ±È½ÏϸÖÂ͸³¹£¬Òò´ËתÔØÒ»ÏÂÒÔ±ã×Ô¼ºÑ§Ï°£¬Í¬Ê±ºÍ´ó¼Ò·ÖÏí£¡
£¨Õâƪ²©¿ÍÖ÷ÒªÊÇÒÔ¼üÅÌÇý¶¯ÎªÀýµÄ£¬²»¹ý½²½âµÄÊÇLinux Input Subsystem£¬¿ÉÒÔ×ÐϸµÄÑо¿Ò»Ï£¡£©
¼üÅÌÇý¶¯½«¼ì ......

ÈçºÎ±£³ÖLinux·þÎñÆ÷¼äµÄÎļþͬ²½

 ±¾ÎÄÏêϸ½éÉÜrsync·þÎñµÄ°²×°ÅäÖÃÒÔ¼°ÈçºÎÀûÓÃrsync±£³ÖLinux·þÎñÆ÷¼äµÄÎļþͬ²½¡£
¡¡¡¡·þÎñÆ÷Ö®¼ä³£³£Òª±£³ÖЩÎļþ»òĿ¼µÄÒ»Ö£¬±ÈÈçһЩ´óµÄÈí¼þÏÂÔØÍøÕ¾£¬ËüÃÇͨ³£Ê¹Óöą̀·þÎñÆ÷À´ÌṩÏÂÔØ·þÎñ¡£µ±Ò»Ì¨·þÎñÆ÷ÉϵÄÎļþ¸üкó£¬ÆäËüµÄ·þÎñÆ÷Ò²ÐèÒª¸üУ¬¶øÇÒ ÔÚ¸üеÄʱºòÓ¦¸ÃÊÇÖ»¶ÔÐÂÔö»òÊÇÐ޸ĹýµÄÎļþ½øÐиüР......

Linux sort ÃüÁîÏê½â

Linux sort ÃüÁîÏê½â
2007-06-23 02:34
Óï·¨¸ñʽ
sort [ -A ] [ -b ] [ -c ] [ -d ] [ -f ] [ -i ] [ -m] [ -n ] [ -r ] [ -u ] [ -o OutFile ]
[ -t Character ] [ -T Directory ] [ -y [ Kilobytes ] ] [ -z RecordSize ] [ [ + [ FSkip ]
[ .CSkip ] [ b ] [ d ] [ f ] [ i ] [ n ] [ r ] ] [ - [ FSkip ] [ .C ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ