1 # SPDX-License-Identifier: GPL-2.0
4 $id: http://devicetree.org/schemas/serial/rs485.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RS485 serial communications Bindings
9 description: The RTS signal is capable of automatically controlling line
10 direction for the built-in half-duplex mode. The properties described
11 hereafter shall be given to a half-duplex capable UART node.
14 - Rob Herring <robh@kernel.org>
18 description: prop-encoded-array <a b>
19 $ref: /schemas/types.yaml#/definitions/uint32-array
22 - description: Delay between rts signal and beginning of data sent in
23 milliseconds. It corresponds to the delay before sending data.
26 - description: Delay between end of data sent and rts signal in milliseconds.
27 It corresponds to the delay after sending data and actual release
33 description: drive RTS low when sending (default is high).
34 $ref: /schemas/types.yaml#/definitions/flag
36 linux,rs485-enabled-at-boot-time:
37 description: enables the rs485 feature at boot time. It can be disabled
38 later with proper ioctl.
39 $ref: /schemas/types.yaml#/definitions/flag
42 description: enables the receiving of data even while sending data.
43 $ref: /schemas/types.yaml#/definitions/flag
46 description: GPIO pin to enable RS485 bus termination.
49 additionalProperties: true