From 6e5c50bde46d57a9f6439d6bd103c36c8df1de4c Mon Sep 17 00:00:00 2001
From: Thomas Schmitt <scdbackup@gmx.net>
Date: Sat, 1 Mar 2014 10:16:03 +0000
Subject: [PATCH] Improved emulation of mode page 2A

---
 cdrskin/cdrskin_timestamp.h |  2 +-
 libburn/drive.c             |  8 ++++++++
 libburn/libburn.h           | 15 +++++++--------
 libburn/transport.h         |  2 ++
 4 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/cdrskin/cdrskin_timestamp.h b/cdrskin/cdrskin_timestamp.h
index afd9c99..f44290e 100644
--- a/cdrskin/cdrskin_timestamp.h
+++ b/cdrskin/cdrskin_timestamp.h
@@ -1 +1 @@
-#define Cdrskin_timestamP "2014.02.19.111017"
+#define Cdrskin_timestamP "2014.03.01.101537"
diff --git a/libburn/drive.c b/libburn/drive.c
index a37444b..c13ffe1 100644
--- a/libburn/drive.c
+++ b/libburn/drive.c
@@ -1222,6 +1222,7 @@ static int drive_getcaps(struct burn_drive *d, struct burn_drive_info *out)
 {
 	struct burn_scsi_inquiry_data *id;
 	int i, profile;
+	struct burn_feature_descr *feat;
 
 	/* ts A61007 : now prevented in enumerate_common() */
 #if 0
@@ -1275,6 +1276,13 @@ static int drive_getcaps(struct burn_drive *d, struct burn_drive_info *out)
 			else if (profile == 0x12)
 				out->write_dvdram = out->read_dvdram = 1;
 		}
+
+		/* Test Write bit of CD TAO, CD Mastering, DVD-R/-RW Write */
+		for (i = 0x002D; i <= 0x002F; i++)
+			if (burn_drive_has_feature(d, i, &feat, 0))
+				if (feat->data_lenght > 0)
+					out->write_simulate |=
+							 !!(feat->data[0] & 4);
 	}
 
 	out->drive = d;
diff --git a/libburn/libburn.h b/libburn/libburn.h
index 91956a1..cf635f1 100644
--- a/libburn/libburn.h
+++ b/libburn/libburn.h
@@ -594,10 +594,10 @@ struct burn_drive_info
             to inquire a device file address.            ^^^^^ ALWAYS ^^^^^^^*/
 	char location[17];
 
-	/* DEPRECATION:
-	   Start of information from mode page 2Ah which is declared
-	   obsolete by MMC-5. Do not rely on this, if you can get a
-	   meaningful reply from burn_drive_get_all_profiles()
+	/* NOTE: The capability to write particular media types is also
+	         announced by their profile number being in the list returned
+	         by burn_drive_get_all_profile(). This is the only way to
+	         inquire types DVD-RW, DVD+R, DVD+R DL, DVD+RW, BD-R, BD-RE.
 	*/
 	/** Can the drive read DVD-RAM discs */
 	unsigned int read_dvdram:1;
@@ -622,13 +622,12 @@ struct burn_drive_info
 	/** Can the drive simulate a write */
 	unsigned int write_simulate:1;
 
-	/** Can the drive report C2 errors */
+	/** DEPRECATED: Can the drive report C2 errors */
 	unsigned int c2_errors:1;
 
-	/** The size of the drive's buffer (in kilobytes) */
+	/** DEPRECATED: The size of the drive's buffer (in kilobytes) */
 	int buffer_size;
 
-	/* End of DEPRECATION */
 
 	/** 
 	 * The supported block types in tao mode.
@@ -1646,7 +1645,7 @@ void burn_disc_erase(struct burn_drive *drive, int fast);
 /** Format media for use with libburn. This currently applies to DVD-RW
     in state "Sequential Recording" (profile 0014h) which get formatted to
     state "Restricted Overwrite" (profile 0013h). DVD+RW can be "de-iced"
-    by setting bit2 of flag. DVD-RAM and BD-RE may get formatted initially
+    by setting bit4 of flag. DVD-RAM and BD-RE may get formatted initially
     or re-formatted to adjust their Defect Managment.
     This function usually returns while the drive is still in the process
     of formatting. The formatting is done, when burn_drive_get_status()
diff --git a/libburn/transport.h b/libburn/transport.h
index 712b1a6..a07fd7b 100644
--- a/libburn/transport.h
+++ b/libburn/transport.h
@@ -151,6 +151,8 @@ struct burn_feature_descr {
                               */
 
         unsigned char  data_lenght;
+
+	/* Additional bytes after the first 4 bytes of the descriptor */
         unsigned char *data;
 
         struct burn_feature_descr *next;