Index: uspace/drv/block/ata_bd/ata_hw.h
===================================================================
--- uspace/drv/block/ata_bd/ata_hw.h	(revision 35b8bfec4fe9165e74e88a84c760fdfb3fffcde9)
+++ uspace/drv/block/ata_bd/ata_hw.h	(revision c53b58e933d3da92e0e4a3461e7e13f4a3d81fb8)
@@ -136,5 +136,6 @@
 	CMD_PACKET		= 0xA0,
 	CMD_IDENTIFY_PKT_DEV	= 0xA1,
-	CMD_IDENTIFY_DRIVE	= 0xEC
+	CMD_IDENTIFY_DRIVE	= 0xEC,
+	CMD_FLUSH_CACHE		= 0xE7
 };