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 10extern int start_io_thread(unsigned long sp, int *fds_out); 11extern int io_thread(void *arg); 12extern int kernel_fd; 13 14extern int ubd_read_poll(int timeout); 15extern int ubd_write_poll(int timeout); 16 17#define UBD_REQ_BUFFER_SIZE 64 18 19#endif 20 21