rem: poke_write(void* cookie, off_t position, const void* buffer, size_t* num_bytes)
add: poke_write(void* cookie, off_t position, const void* buffer, size_t* numBytes)
context: poke_write(void* cookie, off_t position, const void* buffer, size_t* num_bytes){	*num_bytes = 0;    return B_NOT_ALLOWED;}