summaryrefslogtreecommitdiffstats
path: root/include/linux/serial.h
diff options
context:
space:
mode:
authorArjan van de Ven <arjan@linux.intel.com>2008-10-17 09:20:26 -0700
committerArjan van de Ven <arjan@linux.intel.com>2008-10-17 09:20:26 -0700
commit651dab4264e4ba0e563f5ff56f748127246e9065 (patch)
tree016630974bdcb00fe529b673f96d389e0fd6dc94 /include/linux/serial.h
parent40b8606253552109815786e5d4b0de98782d31f5 (diff)
parent2e532d68a2b3e2aa6b19731501222069735c741c (diff)
Merge commit 'linus/master' into merge-linus
Conflicts: arch/x86/kvm/i8254.c
Diffstat (limited to 'include/linux/serial.h')
-rw-r--r--include/linux/serial.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/serial.h b/include/linux/serial.h
index deb714314fb..1ea8d9265bf 100644
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -173,6 +173,22 @@ struct serial_icounter_struct {
int reserved[9];
};
+/*
+ * Serial interface for controlling RS485 settings on chips with suitable
+ * support. Set with TIOCSRS485 and get with TIOCGRS485 if supported by your
+ * platform. The set function returns the new state, with any unsupported bits
+ * reverted appropriately.
+ */
+
+struct serial_rs485 {
+ __u32 flags; /* RS485 feature flags */
+#define SER_RS485_ENABLED (1 << 0)
+#define SER_RS485_RTS_ON_SEND (1 << 1)
+#define SER_RS485_RTS_AFTER_SEND (1 << 2)
+ __u32 delay_rts_before_send; /* Milliseconds */
+ __u32 padding[6]; /* Memory is cheap, new structs
+ are a royal PITA .. */
+};
#ifdef __KERNEL__
#include <linux/compiler.h>