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| author | Max Krummenacher <max.krummenacher@toradex.com> | 2014-10-27 17:16:49 +0100 |
|---|---|---|
| committer | Max Krummenacher <max.krummenacher@toradex.com> | 2014-10-28 14:35:30 +0100 |
| commit | 82cf64948ddab0360fab876ee321b6191ed7258a (patch) | |
| tree | a9c21fa48e0126778c7097ec8a3f5323ee4aa84c /COPYING | |
| parent | a5f7907bd0a0c58522aa76d5cb3a7fa736884a1c (diff) | |
serial/imx.c add RS485 handling
Use the RTS(CTS) output to control a RS485 transmitter.
The UART obviously needs RTS/CTS enabled for this to work, e.g.
fsl,uart-has-rtscts must be present in the device tree.
Enable RS485 by either using ioctrl TIOCSRS485 or enable it in
the device tree by setting linux,rs485-enabled-at-boot-time.
e.g.
&uart2 {
status = "okay";
linux,rs485-enabled-at-boot-time;
};
Largely taken from Bobby Wu's patch
https://community.freescale.com/message/354499#354499
Diffstat (limited to 'COPYING')
0 files changed, 0 insertions, 0 deletions