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-rw-r--r--include/linux/serial.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/serial.h b/include/linux/serial.h
index e1ad16ae6..3cc56b08f 100644
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -95,6 +95,7 @@ struct serial_uart_config {
#define ASYNC_FLAGS 0x3FFF /* Possible legal async flags */
#define ASYNC_USR_MASK 0x3430 /* Legal flags that non-privileged
* users can set or reset */
+#define ASYNC_IOC3 0x4000 /* SGI IOC3 serial */
/* Internal flags used only by kernel/chr_drv/serial.c */
#define ASYNC_INITIALIZED 0x80000000 /* Serial port was initialized */