1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
4  * Copyright (C) 2001 RidgeRun, Inc (glonnon@ridgerun.com)
5  */
6 
7 #ifndef __UM_UBD_USER_H
8 #define __UM_UBD_USER_H
9 
10 #include <os.h>
11 
12 int start_io_thread(struct os_helper_thread **td_out, int *fd_out);
13 void *io_thread(void *arg);
14 extern int kernel_fd;
15 
16 extern int ubd_read_poll(int timeout);
17 extern int ubd_write_poll(int timeout);
18 
19 #define UBD_REQ_BUFFER_SIZE 64
20 
21 #endif
22 
23