Greg Hartman | 76d05dc | 2016-11-23 15:51:27 -0800 | [diff] [blame] | 1 | /* ----------------------------------------------------------------------- * |
| 2 | * |
| 3 | * Copyright 2004-2008 H. Peter Anvin - All Rights Reserved |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person |
| 6 | * obtaining a copy of this software and associated documentation |
| 7 | * files (the "Software"), to deal in the Software without |
| 8 | * restriction, including without limitation the rights to use, |
| 9 | * copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom |
| 11 | * the Software is furnished to do so, subject to the following |
| 12 | * conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall |
| 15 | * be included in all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 18 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
| 19 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 20 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
| 21 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 22 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 23 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 24 | * OTHER DEALINGS IN THE SOFTWARE. |
| 25 | * |
| 26 | * ----------------------------------------------------------------------- */ |
| 27 | |
| 28 | /* |
| 29 | * null_read.c |
| 30 | * |
| 31 | * Reading null device |
| 32 | */ |
| 33 | |
| 34 | #include <errno.h> |
| 35 | #include <string.h> |
| 36 | #include <com32.h> |
| 37 | #include <minmax.h> |
| 38 | #include "file.h" |
| 39 | |
| 40 | static ssize_t __null_read(struct file_info *fp, void *buf, size_t count) |
| 41 | { |
| 42 | (void)fp; |
| 43 | (void)buf; |
| 44 | (void)count; |
| 45 | return 0; |
| 46 | } |
| 47 | |
| 48 | const struct input_dev dev_null_r = { |
| 49 | .dev_magic = __DEV_MAGIC, |
| 50 | .flags = __DEV_INPUT | __DEV_NULL, |
| 51 | .fileflags = O_RDONLY, |
| 52 | .read = __null_read, |
| 53 | .close = NULL, |
| 54 | }; |