-#define USBAT_ATA_DATA 0x10 // read/write data (R/W)
-#define USBAT_ATA_FEATURES 0x11 // set features (W)
-#define USBAT_ATA_ERROR 0x11 // error (R)
-#define USBAT_ATA_SECCNT 0x12 // sector count (R/W)
-#define USBAT_ATA_SECNUM 0x13 // sector number (R/W)
-#define USBAT_ATA_LBA_ME 0x14 // cylinder low (R/W)
-#define USBAT_ATA_LBA_HI 0x15 // cylinder high (R/W)
-#define USBAT_ATA_DEVICE 0x16 // head/device selection (R/W)
-#define USBAT_ATA_STATUS 0x17 // device status (R)
-#define USBAT_ATA_CMD 0x17 // device command (W)
-#define USBAT_ATA_ALTSTATUS 0x0E // status (no clear IRQ) (R)
+#define USBAT_ATA_DATA 0x10 /* read/write data (R/W) */
+#define USBAT_ATA_FEATURES 0x11 /* set features (W) */
+#define USBAT_ATA_ERROR 0x11 /* error (R) */
+#define USBAT_ATA_SECCNT 0x12 /* sector count (R/W) */
+#define USBAT_ATA_SECNUM 0x13 /* sector number (R/W) */
+#define USBAT_ATA_LBA_ME 0x14 /* cylinder low (R/W) */
+#define USBAT_ATA_LBA_HI 0x15 /* cylinder high (R/W) */
+#define USBAT_ATA_DEVICE 0x16 /* head/device selection (R/W) */
+#define USBAT_ATA_STATUS 0x17 /* device status (R) */
+#define USBAT_ATA_CMD 0x17 /* device command (W) */
+#define USBAT_ATA_ALTSTATUS 0x0E /* status (no clear IRQ) (R) */