-/* Bits in dhrcr */
-#define DH_PE 0010000 /* parity error */
-#define DH_FE 0020000 /* framing error */
-#define DH_DO 0040000 /* data overrun */
-
-struct dmdevice
-{
- short dmcsr; /* control status register */
- short dmlstat; /* line status register */
- short dmpad1[2];
-};
-
-/* bits in dm csr */
-#define DM_RF 0100000 /* ring flag */
-#define DM_CF 0040000 /* carrier flag */
-#define DM_CTS 0020000 /* clear to send */
-#define DM_SRF 0010000 /* secondary receive flag */
-#define DM_CS 0004000 /* clear scan */
-#define DM_CM 0002000 /* clear multiplexor */
-#define DM_MM 0001000 /* maintenance mode */
-#define DM_STP 0000400 /* step */
-#define DM_DONE 0000200 /* scanner is done */
-#define DM_IE 0000100 /* interrupt enable */
-#define DM_SE 0000040 /* scan enable */
-#define DM_BUSY 0000020 /* scan busy */
-
-/* bits in dm lsr */
-#define DML_RNG 0000200 /* ring */
-#define DML_CAR 0000100 /* carrier detect */
-#define DML_CTS 0000040 /* clear to send */
-#define DML_SR 0000020 /* secondary receive */
-#define DML_ST 0000010 /* secondary transmit */
-#define DML_RTS 0000004 /* request to send */
-#define DML_DTR 0000002 /* data terminal ready */
-#define DML_LE 0000001 /* line enable */
-
-#define DML_ON (DML_DTR|DML_RTS|DML_LE)
-#define DML_OFF (DML_LE)