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Diffstat (limited to 'drivers/staging/sb105x/sb_mp_register.h')
-rw-r--r--drivers/staging/sb105x/sb_mp_register.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/sb105x/sb_mp_register.h b/drivers/staging/sb105x/sb_mp_register.h
index 5480ae11368f..a2087f5b0d1a 100644
--- a/drivers/staging/sb105x/sb_mp_register.h
+++ b/drivers/staging/sb105x/sb_mp_register.h
@@ -45,7 +45,7 @@
#define IIR_RS232 0x00 /* RS232 type */
#define IIR_RS422 0x10 /* RS422 type */
#define IIR_RS485 0x20 /* RS485 type */
-#define IIR_UNKNOWN 0x30 /* unknown type */
+#define IIR_TYPE_MASK 0x30
/* Interrrupt Mask Register */
#define MP_OPTR_IMR0 0x0C /* port0 ~ port8 */