AM335X UART mode in 485

Hi,

Please see this post: http://e2e.ti.com/support/embedded/linux/f/354/t/266128.aspx

Hi,Biser
 Thank you, UART mode in 485.
 In the beginning,the function has a problem, I have seen this content.
 Now, my problem now is there after the Modify Code?
 Don't know you also need to Modify the Code?

Yes, the modified code should be the one that works.

Biser,
 I demand can I achieve?
 In theory should be driver automatic switch, can't be in the user space through the IOCTL modify the RTS.

See this thread too, if it resolves your problem: http://e2e.ti.com/support/arm/sitara_arm/f/791/t/337173.aspx

Hi, Biser
 The frist, the pin mux bug I modified, RTS & CTS need chanage.
 The second, you suggest the code I have modified.
 The third, the test case, minicom open uart, the RTS pull up, UART only send, if RTS  pull down, UART only receive,    but this measurement is at the user space in the operation
 The fourth, I need the driver may auto switch RTS.

Did you check the second link I posted?

I have learned, or how to know to modify pin mux?

I don't understand your question.