LINUX驱动出错返回值规范

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_GENERIC_ERRNO_BASE_H
#define _ASM_GENERIC_ERRNO_BASE_H
#define EPERM    1  /* Operation not permitted */
#define ENOENT     2  /* No such file or directory */
#define ESRCH    3  /* No such process */
#define EINTR    4  /* Interrupted system call */
#define EIO    5  /* I/O error */
#define ENXIO    6  /* No such device or address */
#define E2BIG    7  /* Argument list too long */
#define ENOEXEC    8  /* Exec format error */
#define EBADF    9  /* Bad file number */
#define ECHILD    10  /* No child processes */
#define EAGAIN    11  /* Try again */
#define ENOMEM    12  /* Out of memory */
#define EACCES    13  /* Permission denied */
#define EFAULT    14  /* Bad address */
#define ENOTBLK   15  /* Block device required */
#define EBUSY   16  /* Device or resource busy */
#define EEXIST    17  /* File exists */
#define EXDEV   18  /* Cross-device link */
#define ENODEV    19  /* No such device */
#define ENOTDIR   20  /* Not a directory */
#define EISDIR    21  /* Is a directory */
#define EINVAL    22  /* Invalid argument */
#define ENFILE    23  /* File table overflow */
#define EMFILE    24  /* Too many open files */
#define ENOTTY    25  /* Not a typewriter */
#define ETXTBSY   26  /* Text file busy */
#define EFBIG   27  /* File too large */
#define ENOSPC    28  /* No space left on device */
#define ESPIPE    29  /* Illegal seek */
#define EROFS   30  /* Read-only file system */
#define EMLINK    31  /* Too many links */
#define EPIPE   32  /* Broken pipe */
#define EDOM    33  /* Math argument out of domain of func */
#define ERANGE    34  /* Math result not representable */
#endif