[PATCH] pcmcia: export stored values in sysfs

Export the stored values instead of re-reading everything in the socket
information sysfs files, and make them accessible to all users, not only
to root.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

drivers/pcmcia/socket_sysfs.c

@@ -42,35 +42,28 @@
 
 static ssize_t pccard_show_type(struct class_device *dev, char *buf)
 {
-	int val;
 	struct pcmcia_socket *s = to_socket(dev);
 
 	if (!(s->state & SOCKET_PRESENT))
 		return -ENODEV;
-	s->ops->get_status(s, &val);
-	if (val & SS_CARDBUS)
+	if (s->state & SOCKET_CARDBUS)
 		return sprintf(buf, "32-bit\n");
-	if (val & SS_DETECT)
-		return sprintf(buf, "16-bit\n");
-	return sprintf(buf, "invalid\n");
+	return sprintf(buf, "16-bit\n");
 }
-static CLASS_DEVICE_ATTR(card_type, 0400, pccard_show_type, NULL);
+static CLASS_DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL);
 
 static ssize_t pccard_show_voltage(struct class_device *dev, char *buf)
 {
-	int val;
 	struct pcmcia_socket *s = to_socket(dev);
 
 	if (!(s->state & SOCKET_PRESENT))
 		return -ENODEV;
-	s->ops->get_status(s, &val);
-	if (val & SS_3VCARD)
-		return sprintf(buf, "3.3V\n");
-	if (val & SS_XVCARD)
-		return sprintf(buf, "X.XV\n");
-	return sprintf(buf, "5.0V\n");
+	if (s->socket.Vcc)
+		return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10,
+			       s->socket.Vcc % 10);
+	return sprintf(buf, "X.XV\n");
 }
-static CLASS_DEVICE_ATTR(card_voltage, 0400, pccard_show_voltage, NULL);
+static CLASS_DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL);
 
 static ssize_t pccard_show_vpp(struct class_device *dev, char *buf)
 {
@@ -79,7 +72,7 @@ static ssize_t pccard_show_vpp(struct class_device *dev, char *buf)
 		return -ENODEV;
 	return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10);
 }
-static CLASS_DEVICE_ATTR(card_vpp, 0400, pccard_show_vpp, NULL);
+static CLASS_DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL);
 
 static ssize_t pccard_show_vcc(struct class_device *dev, char *buf)
 {
@@ -88,7 +81,7 @@ static ssize_t pccard_show_vcc(struct class_device *dev, char *buf)
 		return -ENODEV;
 	return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10);
 }
-static CLASS_DEVICE_ATTR(card_vcc, 0400, pccard_show_vcc, NULL);
+static CLASS_DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL);
 
 
 static ssize_t pccard_store_insert(struct class_device *dev, const char *buf, size_t count)