add "Persistent Device Naming" rules file for disks

[elogind.git] / extras / scsi_id / scsi_id.h

diff --git a/extras/scsi_id/scsi_id.h b/extras/scsi_id/scsi_id.h
index 8be492b75a717c4d427844822cbfb51f23deb0a2..1c9ed969a7cb0cdba3a25d65f79a09fefd002dbf 100644 (file)
--- a/extras/scsi_id/scsi_id.h
+++ b/extras/scsi_id/scsi_id.h
@@ -22,21 +22,44 @@
  */
 
 #define dprintf(format, arg...) \
-       log_message(LOG_DEBUG, "%s: " format, __FUNCTION__, ## arg)
+       log_message(LOG_DEBUG, "%s: " format, __FUNCTION__ , ## arg)
 
 #define        MAX_NAME_LEN    72
-#define OFFSET (2 * sizeof(unsigned int))
-
-static inline char *sysfs_get_attr(struct sysfs_class_device *dev,
-                                   const char *attr)
-{
-       return sysfs_get_value_from_attributes(dev->directory->attributes,
-                                              attr);
-}
-
-extern int scsi_get_serial (struct sysfs_class_device *scsi_dev,
-                           const char *devname, int page_code, char *serial,
-                           int len);
+
+/*
+ * MAX_ATTR_LEN: maximum length of the result of reading a sysfs
+ * attribute.
+ */
+#define        MAX_ATTR_LEN    256
+
+/*
+ * MAX_SERIAL_LEN: the maximum length of the serial number, including
+ * added prefixes such as vendor and product (model) strings.
+ */
+#define        MAX_SERIAL_LEN  256
+
+/*
+ * MAX_BUFFER_LEN: maximum buffer size and line length used while reading
+ * the config file.
+ */
+#define MAX_BUFFER_LEN 256
+
+extern int scsi_get_serial (struct sysfs_device *scsi_dev, const char
+                           *devname, int page_code, char *serial, int
+                           len);
 extern void log_message (int level, const char *format, ...)
        __attribute__ ((format (printf, 2, 3)));
 
+#ifndef u8
+typedef unsigned char u8;
+#endif
+
+/*
+ * Page code values. 
+ */
+enum page_code {
+               PAGE_83_PRE_SPC3 = -0x83,
+               PAGE_UNSPECIFIED = 0x00,
+               PAGE_80          = 0x80,
+               PAGE_83          = 0x83,
+};