USB: CDC ACM

TMK CDC Console

• https://github.com/tmk/tmk_keyboard/issues/662

• https://github.com/tmk/tmk_keyboard/tree/cdc_console

Serial Terminal

jerm

https://web.archive.org/web/20160719034538/http://www.bsddiary.net/jerm/

jerm -b 115200 -rxtrn /dev/ttyACM0

Escape Characters

Typed characters are normally transmitted directly to the remote machine (which does the echoing as well). A tilde preceded by a Control-M or Enter (‘^M ~’) is an escape signal; the following are recognized:

^M ~ .
Drop the connection and exit (you may still be logged in on the remote machine). When jerm is invoked as a relaying server (with -D), Control-C (‘^C’) will terminate jerm. If in the pipe mode (-i is specified), jerm does not terminate. Send a hang up signal (typically kill -HUP) instead.
^M ~ ~
Send a tilde (‘~’) to the remote machine.
^M ~ #
Send a BREAK signal to the remote machine.
^M ~ > file
Send the local file file to the remote machine as its input.
^M ~ x
Toggle back and forth between the normal and the hexadecimal dump mode. The hexadecimal dump mode displays received characters in hexadecimal.
^M ~ r rnRN
Set CR NL mapping method in the same manner as the -r option.
^M ~ ?
Get a summary of the ‘^M ~’ escapes.