.\" Copyright (C) 2022 Samuel Williams .\" .\" SPDX-License-Identifier: LGPL-2.0-or-later .\" .TH io_uring_prep_uring_cmd128 3 "October 22, 2025" "liburing-2.13" "liburing Manual" .SH NAME io_uring_prep_uring_cmd128 \- prepare a uring_cmd request .SH SYNOPSIS .nf .B #include .PP .BI "void io_uring_prep_uring_cmd128(struct io_uring_sqe *" sqe "," .BI " int " cmd_op "," .BI " int " fd ");" .fi .SH DESCRIPTION .PP The .BR io_uring_prep_uring_cmd128 (3) function prepares uring_cmd (fd specific) request for a 128 byte submission queue entry. The submission queue entry .I sqe is setup to use the filedescriptor .I fd to send file descriptor specific .IR cmd_op . The reserved fields are initialized to 0. Otherwise the caller has to set up any submission queue entry's operation specific fields. .SH RETURN VALUE None .SH ERRORS None .SH SEE ALSO .BR io_uring_prep_uring_cmd (3), .BR io_uring_get_sqe (3), .BR io_uring_submit (3),