libexplain  1.4.D001
libexplain/buffer/v4l2_querymenu.c
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00001 /*
00002  * libexplain - a library of system-call-specific strerror replacements
00003  * Copyright (C) 2011, 2013 Peter Miller
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU Lesser General Public License as
00007  * published by the Free Software Foundation; either version 3 of the
00008  * License, or (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Lesser General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Lesser General Public License
00016  * along with this program. If not, see <http://www.gnu.org/licenses/>.
00017  */
00018 
00019 #include <libexplain/ac/linux/videodev2.h>
00020 
00021 #include <libexplain/buffer/int32_t.h>
00022 #include <libexplain/buffer/v4l2_control_id.h>
00023 #include <libexplain/buffer/v4l2_querymenu.h>
00024 #include <libexplain/buffer/pointer.h>
00025 #include <libexplain/is_efault.h>
00026 
00027 
00028 #ifdef HAVE_LINUX_VIDEODEV2_H
00029 
00030 void
00031 explain_buffer_v4l2_querymenu(explain_string_buffer_t *sb,
00032     const struct v4l2_querymenu *data, int extra)
00033 {
00034     if (explain_is_efault_pointer(data, sizeof(*data)))
00035     {
00036         explain_buffer_pointer(sb, data);
00037         return;
00038     }
00039 
00040     explain_string_buffer_puts(sb, "{ id = ");
00041     explain_buffer_v4l2_control_id(sb, data->id);
00042     explain_string_buffer_puts(sb, ", index = ");
00043     explain_buffer_uint32_t(sb, data->index);
00044     if (extra)
00045     {
00046         explain_string_buffer_puts(sb, ", name = ");
00047         explain_string_buffer_putsu_quoted_n
00048         (
00049             sb,
00050             data->name,
00051             sizeof(data->name)
00052         );
00053         if (data->reserved)
00054         {
00055             explain_string_buffer_puts(sb, ", reserved = ");
00056             explain_buffer_uint32_t(sb, data->reserved);
00057         }
00058     }
00059     explain_string_buffer_puts(sb, " }");
00060 }
00061 
00062 #endif
00063 
00064 /* vim: set ts=8 sw=4 et : */