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-rw-r--r--Bindings/serial/rs485.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Bindings/serial/rs485.txt b/Bindings/serial/rs485.txt
index b8415936dfdb..b7c29f74ebb2 100644
--- a/Bindings/serial/rs485.txt
+++ b/Bindings/serial/rs485.txt
@@ -12,6 +12,7 @@ Optional properties:
* b is the delay between end of data sent and rts signal in milliseconds
it corresponds to the delay after sending data and actual release of the line.
If this property is not specified, <0 0> is assumed.
+- rs485-rts-active-low: drive RTS low when sending (default is high).
- linux,rs485-enabled-at-boot-time: empty property telling to enable the rs485
feature at boot time. It can be disabled later with proper ioctl.
- rs485-rx-during-tx: empty property that enables the receiving of data even