Exportable Kernel Data Types #include __u8; /* unsigned byte (8 bits) */ __u16; /* unsigned word (16 bits) */ __u32; /* unsigned 32-bit value */ __u64; /* unsigned 64-bit value */ __s8; /* signed byte (8 bits) */ __s16; /* signed word (16 bits) */ __s32; /* signed 32-bit value */ __s64; /* signed 64-bit value */