Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 32 insertions, 0 deletions

diff --git a/tools/usb/usbip/libsrc/sysfs_utils.c b/tools/usb/usbip/libsrc/sysfs_utils.c
new file mode 100644
index 000000000..14d5e67d3
--- /dev/null
+++ b/tools/usb/usbip/libsrc/sysfs_utils.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "sysfs_utils.h"
+#include "usbip_common.h"
+
+int write_sysfs_attribute(const char *attr_path, const char *new_value,
+			  size_t len)
+{
+	int fd;
+	int length;
+
+	fd = open(attr_path, O_WRONLY);
+	if (fd < 0) {
+		dbg("error opening attribute %s", attr_path);
+		return -1;
+	}
+
+	length = write(fd, new_value, len);
+	if (length < 0) {
+		dbg("error writing to attribute %s", attr_path);
+		close(fd);
+		return -1;
+	}
+
+	close(fd);
+
+	return 0;
+}