diff options
Diffstat (limited to 'samsung-ipc/devices/xmm626/xmm626.c')
-rw-r--r-- | samsung-ipc/devices/xmm626/xmm626.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/samsung-ipc/devices/xmm626/xmm626.c b/samsung-ipc/devices/xmm626/xmm626.c new file mode 100644 index 0000000..0c6846d --- /dev/null +++ b/samsung-ipc/devices/xmm626/xmm626.c @@ -0,0 +1,43 @@ +/* + * This file is part of libsamsung-ipc. + * + * Copyright (C) 2012 Alexander Tarasikov <alexander.tarasikov@gmail.com> + * Copyright (C) 2013-2014 Paul Kocialkowski <contact@paulk.fr> + * + * libsamsung-ipc is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * libsamsung-ipc is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with libsamsung-ipc. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <stdlib.h> +#include <sys/ioctl.h> + +#include "xmm626.h" + +unsigned char xmm626_crc_calculate(const void *data, size_t size) +{ + unsigned char crc; + unsigned char *p; + + if (data == NULL || size == 0) + return 0; + + p = (unsigned char *) data; + + crc = 0; + while (size--) + crc ^= *p++; + + return crc; +} + +// vim:ts=4:sw=4:expandtab |