size_t 64 include/sys/device.h typedef int (*devop_read_t) (device_t, char *, size_t *, int); size_t 65 include/sys/device.h typedef int (*devop_write_t) (device_t, char *, size_t *, int); size_t 126 include/sys/vnode.h typedef int (*vnop_read_t) (vnode_t, file_t, void *, size_t, size_t *); size_t 127 include/sys/vnode.h typedef int (*vnop_write_t) (vnode_t, file_t, void *, size_t, size_t *);