Function uring_sys::io_uring_prep_write_fixed

pub unsafe extern "C" fn io_uring_prep_write_fixed(
    sqe: *mut io_uring_sqe, 
    fd: c_int, 
    buf: *const c_void, 
    nbytes: c_uint, 
    offset: off_t, 
    buf_index: c_int
)