Re: 答复: [External Mail]Re: [Breaking change] Echo character by serial driver

[Gregory Nutt]

nsh over usb works with readline/cle now.


In face, isconsole in current implementation is more like a very tiny 
`line driver` inside the serial driver.

That is very interesting.  The serial driver 
(drivers/usbdev/cdcacm.c).  Does not include any of your change. It 
does not use serial.c .  It has its own serial interface and its own 
TERMIOS implementation that does not use your changes.

So I would expect serial.c to be better behaved without the ECHO as well.

Telnet is the same.  It does not use any of the changes to serial.c.  It 
redirects stdin and stdout to the socket interface exchages raw data 
with the host.  It has now TERMIOS support.