samples: move mic/mpssd example code from Documentation

[firefly-linux-kernel-4.4.55.git] / Documentation / mic / mpssd / sysfs.c

diff --git a/Documentation/mic/mpssd/sysfs.c b/Documentation/mic/mpssd/sysfs.c
deleted file mode 100644 (file)
index 8dd3269..0000000
--- a/Documentation/mic/mpssd/sysfs.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC User Space Tools.
- */
-
-#include "mpssd.h"
-
-#define PAGE_SIZE 4096
-
-char *
-readsysfs(char *dir, char *entry)
-{
-       char filename[PATH_MAX];
-       char value[PAGE_SIZE];
-       char *string = NULL;
-       int fd;
-       int len;
-
-       if (dir == NULL)
-               snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry);
-       else
-               snprintf(filename, PATH_MAX,
-                        "%s/%s/%s", MICSYSFSDIR, dir, entry);
-
-       fd = open(filename, O_RDONLY);
-       if (fd < 0) {
-               mpsslog("Failed to open sysfs entry '%s': %s\n",
-                       filename, strerror(errno));
-               return NULL;
-       }
-
-       len = read(fd, value, sizeof(value));
-       if (len < 0) {
-               mpsslog("Failed to read sysfs entry '%s': %s\n",
-                       filename, strerror(errno));
-               goto readsys_ret;
-       }
-       if (len == 0)
-               goto readsys_ret;
-
-       value[len - 1] = '\0';
-
-       string = malloc(strlen(value) + 1);
-       if (string)
-               strcpy(string, value);
-
-readsys_ret:
-       close(fd);
-       return string;
-}
-
-int
-setsysfs(char *dir, char *entry, char *value)
-{
-       char filename[PATH_MAX];
-       char *oldvalue;
-       int fd, ret = 0;
-
-       if (dir == NULL)
-               snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry);
-       else
-               snprintf(filename, PATH_MAX, "%s/%s/%s",
-                        MICSYSFSDIR, dir, entry);
-
-       oldvalue = readsysfs(dir, entry);
-
-       fd = open(filename, O_RDWR);
-       if (fd < 0) {
-               ret = errno;
-               mpsslog("Failed to open sysfs entry '%s': %s\n",
-                       filename, strerror(errno));
-               goto done;
-       }
-
-       if (!oldvalue || strcmp(value, oldvalue)) {
-               if (write(fd, value, strlen(value)) < 0) {
-                       ret = errno;
-                       mpsslog("Failed to write new sysfs entry '%s': %s\n",
-                               filename, strerror(errno));
-               }
-       }
-       close(fd);
-done:
-       if (oldvalue)
-               free(oldvalue);
-       return ret;
-}