Index: uspace/lib/scsi/include/scsi/mmc.h
===================================================================
--- uspace/lib/scsi/include/scsi/mmc.h	(revision 35b8bfec4fe9165e74e88a84c760fdfb3fffcde9)
+++ uspace/lib/scsi/include/scsi/mmc.h	(revision 35b8bfec4fe9165e74e88a84c760fdfb3fffcde9)
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2014 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup libscsi
+ * @{
+ */
+/**
+ * @file SCSI Multi-Media Commands.
+ */
+
+#ifndef LIBSCSI_MMC_H_
+#define LIBSCSI_MMC_H_
+
+#include <stdint.h>
+
+/** SCSI command codes defined in SCSI-MMC */
+enum scsi_cmd_mmc {
+	SCSI_CMD_READ_TOC	= 0x43
+};
+
+/** SCSI Read TOC/PMA/ATIP command.
+ *
+ * Note: For SFF 8020 the command must be padded to 12 bytes.
+ */
+typedef struct {
+	/** Operation code (SCSI_CMD_READ_TOC) */
+	uint8_t op_code;
+	/** Reserved, MSF, Reserved */
+	uint8_t msf;
+	/** Reserved, Format */
+	uint8_t format;
+	/** Reserved */
+	uint8_t reserved_3;
+	/** Reserved */
+	uint8_t reserved_4;
+	/** Reserved */
+	uint8_t reserved_5;
+	/** Track/Session Number */
+	uint8_t track_sess_no;
+	/** Allocation Length */
+	uint16_t alloc_len;
+	/** Control */
+	uint8_t control;
+} __attribute__((packed)) scsi_cdb_read_toc_t;
+
+#endif
+
+/** @}
+ */
Index: uspace/lib/scsi/include/scsi/spc.h
===================================================================
--- uspace/lib/scsi/include/scsi/spc.h	(revision 88205440caa3e827197cd095139acca02b989d5e)
+++ uspace/lib/scsi/include/scsi/spc.h	(revision 35b8bfec4fe9165e74e88a84c760fdfb3fffcde9)
@@ -46,5 +46,9 @@
 };
 
-/** SCSI Inquiry command */
+/** SCSI Inquiry command
+ *
+ * Note: for SFF 8020 the command must be zero-padded to 12 bytes
+ * and alloc_len must be <= 0xff.
+ */
 typedef struct {
 	/** Operation code (SCSI_CMD_INQUIRY) */