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Diffstat (limited to 'samples/mic/mpssd/sysfs.c')
-rw-r--r--samples/mic/mpssd/sysfs.c91
1 files changed, 0 insertions, 91 deletions
diff --git a/samples/mic/mpssd/sysfs.c b/samples/mic/mpssd/sysfs.c
deleted file mode 100644
index 3fb08eb7ed9d..000000000000
--- a/samples/mic/mpssd/sysfs.c
+++ /dev/null
@@ -1,91 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * 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;
-}