FSSH_O_RDWR
#define O_RDWR FSSH_O_RDWR
#define FSSH_B_READ_WRITE FSSH_O_RDWR // read and write
error = targetDomain->Open(target, FSSH_O_RDWR | FSSH_O_TRUNC,
int fd = _kern_open(-1, path, FSSH_O_RDWR | FSSH_O_EXCL | FSSH_O_CREAT,
case FSSH_O_RDWR:
int fd = fssh_open(partition, FSSH_O_RDWR);