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c) ÈȲå°ÎÉ豸
 
d) ¶ÔÏóÉúÃüÖÜÆÚ
 
2.sysfs ÐéÄâÎļþϵͳ
 
sysfs ÊÇÒ»¸öÌØÊâµÄÎļþϵͳ£¬ÀàËÆÓÚ/proc¡£sysfs²»½öÏó/procÒ»ÑùÔÊÐíÓû§¿Õ¼ä·ÃÎÊÄں˵ÄÊý¾Ý£¬¶øÇÒËüÒÔ¸ü½á¹¹»¯µÄ·½Ê½ÏòÓû§ÌṩÄÚºËÊý¾ÝÐÅÏ¢¡£
 
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a) block
 
b) device
 
c) bus
 
d) drivers
 
e) class
 
f) power
 
g) firmware
 
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3. Kobject¡¢Kset ºÍ subsystem
 
3.1 Kobject
Kobject ÊÇ×é³ÉÉ豸ģÐ͵Ļù±¾½á¹¹¡£ÀàËÆÓÚC++ÖеĻùÀ࣬ËüǶÈëÓÚ¸ü´óµÄ¶ÔÏóµÄ¶ÔÏóÖÐ--ËùνµÄÈÝÆ÷--ÓÃÀ´ÃèÊöÉ豸ģÐ͵Ä×é¼þ¡£Èçbus, devices, drivers ¶¼ÊǵäÐ͵ÄÈÝÆ÷¡£
 
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struct kobject{
        char             * k_name;
        char               name[20];
        struct k_ref       kref;
        struct list_head   entry;
        struct kobject   * parent;
        struct kset      * kset;
        struct ktype     *


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