chrdevs是一个指针数组,成员类型为**struct char_device_struct ***,下标与字符设备号有一定的对应关系, **struct char_device_struct **中有成员: unsignedintmajor; structcdev*cdev; major : 是主设备号 cdev : 指向该字符设备号对应的cdev结构体 3、应用层、VFS层 用户如果想操作硬件,必须调用内核中的str...
const char *init_name; /* initial name of the device */ const struct device_type *type; struct mutex mutex; /* mutex to synchronize calls to * its driver. */ struct bus_type *bus; /* type of bus device is on */ struct device_driver *driver; /* which driver has allocated this ...
*/ struct device_type { const char *name; const struct attribute_group **groups; int (*uevent)(struct device *dev, struct kobj_uevent_env *env); char *(*devnode)(struct device *dev, umode_t *mode, kuid_t *uid, kgid_t *gid); void (*release)(struct device *dev); const struct ...
Source: Char.cs Represents a character as a UTF-16 code unit.C# Copy public readonly struct Char : IComparable<char>, IConvertible, IEquatable<char>, IParsable<char>, ISpanParsable<char>, IUtf8SpanParsable<char>, System.Numerics.IAdditionOperators<char,char,char>, System.Numerics.IAdditiv...
Source: Char.cs Represents a character as a UTF-16 code unit.C# Copy public readonly struct Char : IComparable<char>, IConvertible, IEquatable<char>, IParsable<char>, ISpanParsable<char>, IUtf8SpanParsable<char>, System.Numerics.IAdditionOperators<char,char,char>, System.Numerics.IAdditiv...
const struct of_device_id *matches, const struct of_dev_auxdata *lookup, struct device *parent, boolstrict) { conststruct of_dev_auxdata *auxdata; structdevice_node *child; structplatform_device *dev; constchar *bus_id = NULL;
public readonly struct Char : IComparable<char>, IConvertible, IEquatable<char>, IParsable<char>, ISpanParsable<char>, IUtf8SpanParsable<char>, System.Numerics.IAdditionOperators<char,char,char>, System.Numerics.IAdditiveIdentity<char,char>, System.Numerics.IBinaryInteger<char>, System.Numerics....
char *print_mac(char *buffer, const unsigned char *addr); EXPORT_SYMBOL(print_mac); buffer : 为MAC字符串地址存放的地方; addr : 为6字节MAC地址; 1 char *print_mac( char *buffer, const unsigned char *addr) 2{ 3 // MAC_BUF_SIZE = 18 ...
size = *(int*)((char*)p-sizeof(int)); printf("size:%d ",size); free(p); } printf("n"); } $gcc test.c $./a.out 1 2 3 4 5 6 7 8 9 10 17 17 17 17 25 25 33 33 41 41 看来Linux的分配策略不能使得内存大小和元素个数一一对应,此法不可用。 后来发现在Linux下原来也有类...
unsigned char compound_order:只有在head page设置,将compound pages整体页数作为order,只存在head atomic_t compound_mapcount:compound page被多少个用户进程的page 指向该页。当page 属于compound pages时,获取映射此时不再从第二个union结构中的_mapcount获取,而是从该字段中获取。