diff -urpN linux-2.6.19-rc2-mm2.sysfs/fs/sysfs/file.c 2-sysfs_write_file-string/fs/sysfs/file.c
--- linux-2.6.19-rc2-mm2.sysfs/fs/sysfs/file.c	2006-10-22 18:38:47.000000000 +0200
+++ 2-sysfs_write_file-string/fs/sysfs/file.c	2006-10-22 18:45:38.000000000 +0200
@@ -195,6 +195,9 @@ fill_write_buffer(struct sysfs_buffer * 
 		count = PAGE_SIZE - 1;
 	error = copy_from_user(buffer->page,buf,count);
 	buffer->needs_read_fill = 1;
+	/* if buf is assumed to contain a string, terminate it by \0,
+	   so e.g. sscanf() can scan the string easily */
+	buffer->page[count] = 0;
 	return error ? -EFAULT : count;
 }