Index: superiotool.c
===================================================================
--- superiotool.c	(revision 2975)
+++ superiotool.c	(working copy)
@@ -28,6 +28,43 @@
 /* Global flag which indicates whether a chip was detected at all. */
 int chip_found = 0;
 
+#if (__arm__)
+uint8_t inb(uint16_t port)
+{
+	static uint8_t val = 0;
+	FILE *fd = fopen("/dev/port", "r"); /* "a"? */
+
+	if (fd == NULL) {
+		perror("fopen");
+		return 0xff;
+	}
+
+	if (fseek(fd, port, SEEK_SET) != port) {
+		perror("fseek");
+		return 0xff;
+	}
+
+	fread(&val, sizeof(uint8_t), 1, fd);
+	fclose(fd);
+
+	return val;
+}
+
+void outb(uint8_t val, uint16_t port)
+{
+	int fd = open("/dev/port", O_WRONLY);
+	
+	if (fd < 0) {
+		perror("open");
+		return;
+	}
+
+	lseek(fd, port, SEEK_SET);
+	write(fd, &val, 1);
+	close(fd);
+}
+#endif
+
 uint8_t regval(uint16_t port, uint8_t reg)
 {
 	outb(reg, port);
@@ -202,11 +239,13 @@
 		}
 	}
 
+#if !(__arm__)
 	if (iopl(3) < 0) {
 		perror("iopl");
 		printf("Superiotool must be run as root.\n");
 		exit(1);
 	}
+#endif
 
 	print_version();
 
Index: superiotool.h
===================================================================
--- superiotool.h	(revision 2975)
+++ superiotool.h	(working copy)
@@ -27,7 +27,13 @@
 #include <stdint.h>
 #include <string.h>
 #include <getopt.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#if !(__arm__)
 #include <sys/io.h>
+#endif
 
 #define USAGE "Usage: superiotool [-d] [-V] [-v] [-h]\n\n\
   -d | --dump            Dump Super I/O register contents\n\
@@ -70,6 +76,10 @@
 };
 
 /* superiotool.c */
+#if (__arm__)
+uint8_t inb(uint16_t port);
+void outb(uint8_t val, uint16_t port);
+#endif
 uint8_t regval(uint16_t port, uint8_t reg);
 void regwrite(uint16_t port, uint8_t reg, uint8_t val);
 void enter_conf_mode_winbond_fintek_ite_8787(uint16_t port);