rs485 on imx6ul 4.9.51 version

[ganesh_k]

Hello everyone,

Greeting of the day...

   I have seen the linux-imx-4.9.51, in that there is no support of rs485 half duplex on linux-imx4.9.51 kernel version.

Can anyone provide the patch to rs485 half duplex on this kernel version.

Thanks & Regards

Ganesh

[weidong_sun]

Hi  Ganesh,

    I.MX UART for RS485 function is supported by imx.c , which is in path drivers/tty/serial/imx.c , which realize how to control receiving and transmitting data via CTS pin(dce) or RTS(dte).

     here is imx.c source code:

imx.c\serial\tty\drivers - linux-imx - i.MX Linux kernel 

     Here is discussions on RS485:

Strange RS485 latency of disabling driver.  

https://community.nxp.com/message/1050866 

Hope these informatin can help you.

Have a nice day!

BR,

Weidong