summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--include/uapi/linux/fdreg.h16
1 files changed, 13 insertions, 3 deletions
diff --git a/include/uapi/linux/fdreg.h b/include/uapi/linux/fdreg.h
index 1318881954e1..10d33632939d 100644
--- a/include/uapi/linux/fdreg.h
+++ b/include/uapi/linux/fdreg.h
@@ -7,13 +7,23 @@
* Handbook", Sanches and Canton.
*/
-/* Fd controller regs. S&C, about page 340 */
-#define FD_STATUS 4
-#define FD_DATA 5
+/* 82077's auxiliary status registers A & B (R) */
+#define FD_SRA 0
+#define FD_SRB 1
/* Digital Output Register */
#define FD_DOR 2
+/* 82077's tape drive register (R/W) */
+#define FD_TDR 3
+
+/* 82077's data rate select register (W) */
+#define FD_DSR 4
+
+/* Fd controller regs. S&C, about page 340 */
+#define FD_STATUS 4
+#define FD_DATA 5
+
/* Digital Input Register (read) */
#define FD_DIR 7