tools/tbot: update README

refer in the README to tbots webpage, and delete
the README in tools/tbot, as the latest documentation
for tbot is on this webpage.

Signed-off-by: Heiko Schocher <hs@denx.de>

4 files changed, 0 insertions, 684 deletions

diff --git a/tools/tbot/README b/tools/tbot/README
deleted file mode 100644
index 49b9e95f8f..0000000000
--- a/tools/tbot/README
+++ /dev/null
@@ -1,195 +0,0 @@
-# Copyright (c) 2016 DENX Software Engineering GmbH
-# Heiko Schocher <hs@denx.de>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-
-What is tbot ?
-==============
-
-tbot is a tool for executing testcases on boards.
-Source code found on [1]
-Based on DUTS [2]
-written in python
-
-Basic Ideas of tbot
-===================
-(see also the figure:
-https://github.com/hsdenx/tbot/blob/master/doc/tbot_structure.png )
-
-- Virtual laboratory (VL)
-   VL is the basic environment that groups:
-  - [a number of] boards - target devices on which tbot executes testcases.
-  - one Lab PC
-
-- Test case (TC):
-  A piece of python code, which uses the tbot class from [1].
-  Tbot provides functions for sending shell commands and parsing the
-  shell commands output.
-  Tbot waits endless for a shell commands end (detected through reading
-  the consoles prompt).
-  A TC can also call other TC-es.
-
-  remark:
-  Tbot not really waits endless, for a shell commands end, instead
-  tbot starts a watchdog in the background, and if it triggers, tbot
-  ends the TC as failed. In the tbot beginning there was a lot of
-  timeouts / retry cases, but it turned out, that waiting endless
-  is robust and easy ...
-
-- Host PC (where tbot runs, currently only linux host tested)
-  must not a powerful machine (For example [3], I use a
-  raspberry pi for running tbot and buildbot)
-
-- Lab PC:
-  - Host PC connects through ssh to the Lab PC
-    -> so it is possible to test boards, which
-       are not at the same place as the Host PC.
-       (Lab PC and Host PC can be the same of course)
-       -> maybe we can setup a Testsystem, which does nightly
-          U-Boot/Linux builds and test from current mainline U-Boot
-          on boards wherever they are accessible.
-
-  - necessary tasks a Lab PC must deliver:
-    - connect to boards console through a shell command.
-    - power on/off boards through a shell command
-    - detect the current power state of a board through
-      a shell command
-
-  - optional tasks:
-    - tftp server (for example loading images)
-    - nfs server (used as rootfs for linux kernels)
-    - Internet access for example for downloading
-      U-Boot source with git.
-    - toolchains installed for compiling source code
-
-      -> a linux machine is preffered.
-
-  - currently only Lab PC with an installed linux supported/tested.
-
-- Boards(s):
-  the boards on which shell commands are executed.
-
-- Board state:
-  equals to the software, the board is currently running.
-
-  Currently tbot supports 2 board states:
-    - "u-boot", if the board is running U-Boot
-    - "linux", if the board is running a linux kernel
-
-  It should be easy to add other board states to tbot, see
-  https://github.com/hsdenx/tbot/tree/master/src/lab_api/state_[u-boot/linux].py
-
-  A board state is detected through analysing the boards
-  shell prompt. In linux, tbot sets a special tbot prompt,
-  in U-Boot the prompt is static, and configurable in tbot through
-  a board config file.
-
-  A TC can say in which board state it want to send shell commands.
-  Tbot tries to detect the current board state, if board is not in
-  the requested  board state, tbot tries to switch into the correct
-  state. If this fails, the TC fails.
-
-  It is possible to switch in a single TC between board states.
-
-- Events
-  tbot creates while executing testcases so called events.
-  After tbot ended with the testcase it can call event_backends,
-  which convert the events to different formats. more info:
-
-  https://github.com/hsdenx/tbot/blob/master/doc/README.event
-
-  demo for a event backend:
-  http://xeidos.ddns.net/tests/test_db_auslesen.php
-
-- tbot cmdline parameters:
-
-$ python2.7 src/common/tbot.py --help
-Usage: tbot.py [options]
-
-Options:
-  -h, --help            show this help message and exit
-  -c CFGFILE, --cfgfile=CFGFILE
-                        the tbot common configfilename
-  -l LOGFILE, --logfile=LOGFILE
-                        the tbot logfilename, if default, tbot creates a
-                        defaultnamelogfile
-  -t TC, --testcase=TC  the testcase which should be run
-  -v, --verbose         be verbose, print all read/write to stdout
-  -w WORKDIR, --workdir=WORKDIR
-                        set workdir, default os.getcwd()
-$
-
-tbot needs the following files for proper execution:
-
-  - tbot board configuration file (option -c):
-    A board configuration file contains settings tbot needs to
-    connect to the Lab PC and board specific variable settings
-    for testcases.
-
-  - name of the logfile tbot creates (option -l)
-    defaultname: 'log/' + now.strftime("%Y-%m-%d-%H-%M") + '.log'
-
-  - tbots working directory (option -w)
-
-  - the testcasename tbot executes (option -t)
-
-You are interested and want to use tbot?
-If so, please read on the file:
-tools/tbot/README.install
-
-If not read [3] ;-)
-
-Heiko Schocher <hs@denx.de>
-v1 2016.01.22
-
---------------
-[1] https://github.com/hsdenx/tbot
-[2] http://www.denx.de/wiki/DUTS/DUTSDocs
-[3] automated Testsetup with buildbot and tbot doing cyclic tests
-    (buildbot used for starting tbot TC and web presentation of the
-     results, all testing done through tbot):
-    http://xeidos.ddns.net/buildbot/tgrid
-    Host PC in Letkes/hungary
-    VL in munich/germany
-
-    Fancy things are done here, for example:
-    - http://xeidos.ddns.net/buildbot/builders/smartweb_dfu/builds/43/steps/shell/logs/tbotlog
-      (I try to cleanup the logfile soon, so it is not so filled with crap ;-)
-      A first step see here:
-      http://xeidos.ddns.net/buildbot/builders/smartweb_dfu/builds/45/steps/shell/logs/tbotlog
-      (same TC now with the new loglevel = 'CON' ... not yet perfect)
-      Executed steps:
-      - clone u-boot.git
-      - set toolchain
-      - get a list of patchwork patches from my U-Boots ToDo list
-      - download all of them, and check them with checkpatch
-        and apply them to u-boot.git
-      - compile U-Boot for the smartweb board
-      - install the resulting images on the smartweb board
-      - boot U-boot
-      - test DFU
-      - more TC should be added here for testing U-Boot
-
-    - automatic "git bisect"
-      https://github.com/hsdenx/tbot/blob/master/src/tc/tc_board_git_bisect.py
-      http://xeidos.ddns.net/buildbot/builders/tqm5200s/builds/3/steps/shell/logs/tbotlog
-
-      If a current U-Boot image not works on the tqm5200 board
-      this TC can be started. It starts a "git bisect" session,
-      and compiles for each step U-Boot, install it on the tqm5200
-      board, and tests if U-Boot works !
-
-      At the end, it detects the commit, which breaks the board
-
-      This TC is not dependend on U-Boot nor on a special board. It
-      needs only 3 variables:
-      tb.board_git_bisect_get_source_tc: TC which gets the source tree, in which
-        "git bisect" should be executed
-      tb.board_git_bisect_call_tc: TC which gets called every "git bisect" step,
-        which executes commands for detecting if current source code is OK or not.
-        This could be a TC which compiles U-Boot, install it on the board and
-        executes TC on the new booted U-Boot image. ! Board maybe gets borken,
-        as not all U-Boot images work, so you must have a TC which install U-Boot
-        image for example through a debugger.
-      tb.board_git_bisect_good_commit: last nown good commit id
diff --git a/tools/tbot/README-ToDo b/tools/tbot/README-ToDo
deleted file mode 100644
index daf1af1323..0000000000
--- a/tools/tbot/README-ToDo
+++ /dev/null
@@ -1,62 +0,0 @@
-# Copyright (c) 2016 DENX Software Engineering GmbH
-# Heiko Schocher <hs@denx.de>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-
-ToDo list for tbot
-==================
-
-please look also into the tbot ToDo list.
-https://github.com/hsdenx/tbot/blob/master/ToDo
-
-- cleanup tbot code:
-  - remove all retry / timeout pieces of code
-  - clean up tbot function names, as I am not good in
-    giving function a understandable name ;-)
-  - as I am not a python programmer, cleanup whole tbot code
-
-- introduce a "layering" like yocto do, so U-Boot TC can integrated
-  into U-Boot source code.
-
-  Proposal:
-  introduce  subdirs in "src/tc"
-
-       lab: all lab specific stuff
-       lab/common: common lab stuff (for example ssh handling)
-       lab/ssh_std: ssh_std specific stuff
-
-       u-boot: all u-boot tests
-       u-boot/common: common u-boot tc
-       u-boot/duts: DUTS tc
-       u-boot-dxr2: all u-boot dxr2 board specific tc
-
-       board: board tc
-       board/common: common board tc
-       board/dxr2: all tc for dxr2 board
-
-       linux: all linux tc
-       linux/common: common linux tc
-       linux/dxr2
-
-  - move U-Boot special TC to U-Boot source
-    -> need a mechanism in tbot, how it gets automatically for example
-       U-Boot TC from U-Boot source...
-    -> add a consistency checker
-
-- simplify tbot log output (seperate a lot of output which is currently
-  in INFO logging level, to another logging level)
-  started (new loglevel "CON", whih prints read/write from console only), see:
-  https://github.com/hsdenx/tbot/commit/b4ab2567ad8c19ad53f785203159d3c8465a21c6
-  - make the timestamp configurable
-
-- Open more than 2 filehandles ?
-  Do we need for more complex TC more than 2 filehandles?
-
-- Find a way to document all TC and document all variables they use in an
-  automated way.
-
-- write a lot of more TC
-
-- get U-Boot configuration settings from current U-Boot code and use
-  them in U-Boot TC-es
diff --git a/tools/tbot/README.create_a_new_testcase b/tools/tbot/README.create_a_new_testcase
deleted file mode 100644
index fbf8ae8329..0000000000
--- a/tools/tbot/README.create_a_new_testcase
+++ /dev/null
@@ -1,117 +0,0 @@
-# Copyright (c) 2016 DENX Software Engineering GmbH
-# Heiko Schocher <hs@denx.de>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-
-write a new testcase
-=====================
-
-A TC is written in python, so you can use python as usual. For accessing
-the boards console, use functions from the tbotlib, therefore
-
-First import the tbotlib with the line:
-
-  from tbotlib import tbot
-
-If your TC uses variables, please add a line which adds them to
-the log file (for debugging purposes):
-
-  logging.info("args: %s ...", tb.varname, ...)
-
-Say tbot, for which board state your TC is valid with:
-
-  tb.set_board_state("u-boot")
-
-Then you are ready ... and you can use the tbotlib funtions
-for writting/reading to the boards console.
-
-Big fat warning:
-
-A TC must worry about to end only if a board has finished the shell
-command!
-
-Not following this rule, will end in unpredictable behaviour.
-
-(hopefully) useful tbotlib functions
-====================================
-- set the board state, you want to test
-  tb.set_board_state(state)
-  states are: "u-boot" or "linux"
-  If tbot could not set the board state, tbot ends with failure.
-
-- write a command to the boards console:
-  tb.eof_write_con(command):
-    write the command to the boards console. If this
-    fails, tbot ends with failure
-
-- write a command to boards console and wait for prompt:
-  tb.eof_write_cmd(fd, command):
-    fd: filedescriptor which is used, use tb.channel_con for boards console
-    command: command which is written to fd
-
-    Wait endless for board prompt
-
-- write a list of commands to boards console:
-  tb.eof_write_cmd_list(fd, cmdlist):
-    fd: filedescriptor which is used, use tb.channel_con for boards console
-    cmdlist: python list of commandstrings which is written to fd
-
-- wait for boards prompt:
-  tb.eof_read_end_state_con(retry):
-    retry: deprecated, not used anymore, cleanup needed here...
-    tbot waits endless for the boards prompt
-
-- write a command, wait for prompt and check, if a string is read
-  tb.write_cmd_check(fd, cmd, string):
-    fd: filedescriptor which is used, use tb.channel_con for boards console
-    cmd: command, which is send to fd
-    string: string which should be read from fd
-
-    return value:
-      True, if string is read and tbot got back boards prompt
-      False, else
-
-  tb.eof_write_cmd_check(fd, cmd, string):
-    same as tb.write_cmd_check(fd, cmd, string) except, that tbot
-    ends immediately with Failure, if string is not read.
-
-- read until prompt and search strings:
-  tb.readline_and_search_strings(fd, strings):
-    fd: filedescriptor which is used, use tb.channel_con for boards console
-    strings: python list of strings, which can be read
-      If one of this strings is read, this function return the index, which
-      string is read. This function shoud be called in a while loop,
-      until this function returns 'prompt'
-
-- read a line from filedescriptor:
-  not recommended to use, as the TC must check, if tprompt is read for every
-  readen line. Also TC must ensure, that it ends only, if prompt is read.
-  tb.read_line(fd, retry)
-    fd: filedescriptor which is used, use tb.channel_con for boards console
-    retry: retry of trying to reead a line
-
-  return values:
-    True, if a line is read. Readen line in tb.buf[fd]
-    False, if something read, but not a complete line
-    None, if nothing is read
-
-  check if string contains prompt with:
-  tb.is_end_fd(fd, string)
-    fd: filedescriptor which is used, use tb.channel_con for boards console
-    string: buffer, in which a prompt gets searched.
-
-- calling other TC:
-  eof_call_tc(name):
-    call another TC from "src/tc"
-    if the called TC fails with failure, tbot ends with failure
-
-  call_tc(name):
-    call another TC from "src/tc"
-    if the TC which call_tc calls  fails, call_tc() returns False, else True
-
-There are more functions, but for writting TC this should be enough. But
-its software, so new useful functions can always pop up.
-
-Heiko Schocher <hs@denx.de>
-v1 2016.01.23
diff --git a/tools/tbot/README.install b/tools/tbot/README.install
deleted file mode 100644
index a68e70524d..0000000000
--- a/tools/tbot/README.install
+++ /dev/null
@@ -1,310 +0,0 @@
-# Copyright (c) 2016 DENX Software Engineering GmbH
-# Heiko Schocher <hs@denx.de>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-
-install tbot on your PC (linux only tested):
-============================================
-
-- get the source code:
-
-$ git clone https://github.com/hsdenx/tbot.git
-[...]
-$
-
-  cd into the tbot directory.
-
-- you need the for running tbot the python paramiko module, see:
-  http://www.paramiko.org/installing.html
-
-  paramiko is used for handling ssh sessions, and open filedescriptors
-  on a ssh connection. Tbot open a ssh connection to a "lab PC" and
-  opens on that connection 2 filehandles, one for control functions
-  and one for the connection to the boards console. May it is worth
-  to think about to open more filehandles and use them in tbot, but
-  thats a point in the Todo list ...
-
-  See [1] for more infos about tbot principles.
-
-- prepare a directory for storing the logfiles
-  and pass it with the commandline option "-l"
-  to tbot. Default is the directory "log" in the tbot
-  root (don;t forget to create it, if you want to use it)
-
-- If your VL is not yet in tbot source, integrate it
-  (This task has only to be done once for your VL):
-
-  A VL has, as described in [2] "necessary tasks for a Lab PC" explained,
-  3 tasks:
-
-  a) power on/off the board
-  b) get power state of the board
-  c) connect to the boards console
-
-  As tbot sends only shell commands (also to the Lab PC)
-  this tasks must be executable through shell commands on your
-  Lab PC:
-
-  Task a) power on/off board:
-    default TC for this task is:
-    https://github.com/hsdenx/tbot/blob/master/src/tc/tc_lab_denx_power.py
-
-    - now copy this file to for example
-      cp src/tc/tc_lab_denx_power.py src/tc/tc_lab_denx_power_XXX.py
-      (replace XXX to a proper value)
-      and adapt the "remote_power" command from the denx lab to your needs.
-
-      As this TC powers on the board for all your boards in your VL,
-      you can differ between the boards through the tbot class
-      variable "tb.boardlabpowername" (which is in the default case the
-      same as "tb.boardname"), but you may need to name the power target
-      with an other name than boardname, so you can configure this case.
-      The power state "tb.power_state" which the TC has to set
-      is "on" for power on, or "off" for power off.
-
-      If switching on the power is successful, call "tb.end_tc(True)"
-      else "tb.end_tc(False)"
-
-    - set in your board config file:
-      self.tc_lab_denx_power_tc = 'tc_lab_denx_power_XXX.py'
-
-  Task b) power on/off board:
-    default TC for this task is:
-    https://github.com/hsdenx/tbot/blob/master/src/tc/tc_lab_denx_get_power_state.py
-
-    - now copy this file to for example
-      (replace XXX to a proper value)
-      cp src/tc/tc_lab_denx_get_power_state.py src/tc/tc_lab_denx_get_power_state_XXX.py
-      and adapt the commands to your needs.
-
-      If the power of the board is on, call "tb.end_tc(True)"
-      else "tb.end_tc(False)"
-
-    - set in your board config file:
-      self.tc_lab_denx_get_power_state_tc = 'tc_lab_denx_get_power_state_XXX.py'
-
-  Task c) connect to the boards console:
-    default TC for this task is:
-    https://github.com/hsdenx/tbot/blob/master/src/tc/tc_lab_denx_connect_to_board.py
-
-    - now copy this file to for example
-      (replace XXX to a proper value)
-      cp src/tc/tc_lab_denx_connect_to_board.py src/tc/tc_lab_denx_connect_to_board_XXX.py
-      and adapt the commands to your needs.
-
-      If connect fails end this TC with "tb.end_tc(False)"
-      else call "tb.end_tc(True)"
-
-      If you want to use kermit for connecting to the boards console, you
-      can use:
-
-      https://github.com/hsdenx/tbot/blob/master/src/tc/tc_workfd_connect_with_kermit.py
-
-      Example for such a board in the VL from denx:
-      self.tc_lab_denx_connect_to_board_tc = 'tc_workfd_connect_with_kermit.py'
-      https://github.com/hsdenx/tbot/blob/master/tbot_dxr2.cfg#L24
-
-      Hopefully this works for you too.
-
-    - set in your board config file:
-      self.tc_lab_denx_connect_to_board_tc = 'tc_lab_denx_connect_to_board_XXX.py'
-
-  remarks while writting this:
-  - Currently there is only the denx VL. Original idea was to include
-    other VL through a seperate class/file in
-    https://github.com/hsdenx/tbot/tree/master/src/lab_api
-    but it turned out, that if we say "ssh" is the standard way to connect
-    to a VL, we can integrate the VL specific tasks through testcases, see
-    above, so we should do:
-    - rename the "denx" API to a more general name.
-      This is a point on my ToDo list ... done, renamed to 'ssh_std'
-
-  - the VL specific configuration may moved from the board config files
-    and should be collected in VL specific config files, which boards
-    config file simple include.
-
-- prepare password.py file:
-  This file contains all passwords tbot needs (for example for
-  linux login on the boards)
-  tbot searches this file in the tbot root directory.
-  It is a simple python file, for example:
-
-  # passwords for the lab
-  if (board == 'lab'):
-      if (user == 'hs'):
-          password = 'passwordforuserhs'
-      if (user == 'root'):
-          password = 'passwordforrootuser'
-  # passwords for the boards
-  elif (board == 'mcx'):
-      if (user == 'root'):
-          password = 'passwordformcxrootfs'
-  else:
-      if (user == 'root'):
-          password = ''
-
-- prepare board config file
-  Each board which is found in the VL needs a tbot configuration file
-  pass the config file name with the option '-c' to tbot, tbot searches
-  in the root dir for them.
-
-  board Example (dxr2 board):
-  https://github.com/hsdenx/tbot/blob/master/tbot_dxr2.cfg
-
-  Necessary variables:
-
-  line  3: boardname, here it is the "etamin" board
-             no default value, must be set.
-  line  4: boardlabname: name used for connecting to the board
-             may differ from tb.boardname, default tb.boardname
-  line  5: boardlabpowername: name used for power on/off
-             may differ from tb.boardname, default tb.boardname
-  line  6: tftpboardname: name used for tftp subdir (from where
-             U-Boot loads images for example).
-             may differ from tb.boardname, default tb.boardname
-  line  7: labprompt: linux prompt tbot sets
-             no defaultvalue, must be set (maybe we should introduce
-             "ttbott" as default ...
-  line  8: debug: If True, adds debug output on the tbot shell
-  line  9: debugstatus: enable status debug output on the shell
-  line 10: ip: Where tbot finds the Lab PC
-  line 11: user: As which user does tbot logs into the Lab PC
-  line 12: accept_all: passed to paramiko, accept all connections
-  line 13: keepalivetimout: passed to paramiko, timeout for sending
-             keepalive message.
-  line 14: channel_timeout: passed to paramiko
-  line 15: loglevel: tbots loglevel for adding entries into the logfile.
-  line 17: wdt_timeout: timeout in seconds for tbots watchdog.
-             Watchdog gets triggered if prompt get read.
-  line 24: tc_lab_denx_connect_to_board_tc: Which TC is used for
-             connecting to the boards console the TC, here:
-             https://github.com/hsdenx/tbot/blob/master/src/tc/tc_workfd_connect_with_kermit.py
-  line 27: uboot_prompt: boards U-Boot prompt
-  line 28: linux_prompt: boards linux prompt
-
-  Now comes a list of variables TC needs, this vary from which TC
-  you start on the board.
-
-Thats it ... you now can call tbot and hopefully, it works ;-)
-Find an example log [3] for calling simple U-Boot TC for setting
-an U-Boot Environmentvariable.
-
-If you have problems in setting tbot up, please contact me
-(and may give me ssh access to your Lab PC ;-)
-
-If you have running your first TC [3], you may want to write now your own
-TC (and hopefully share them), so continue with:
-u-boot:tools/tbot/README.create_a_new_testcase
-
-Heiko Schocher <hs@denx.de>
-v2 2016.04.26
-
---------------
-
-[1] tbot Dokumentation:
-    [2] u-boot:/tools/tbot/README
-    https://github.com/hsdenx/tbot/blob/master/README.md
-    tbot-devel@googlegroups.com
-
-[3] Example for a first U-Boot TC which should always work:
-    (with commandline option "-v" for verbose output):
-hs@localhost:tbot  [event-devel] $ python2.7 src/common/tbot.py -c tbot_dxr2.cfg -t tc_ub_setenv.py -v -l log/tbot.log
-**** option cfg: tbot_dxr2.cfg log: log/tbot.log tc: tc_ub_setenv.py v 1
-('CUR WORK PATH: ', '/home/hs/data/Entwicklung/tbot')
-('CFGFILE ', 'tbot_dxr2.cfg')
-('LOGFILE ', '/home/hs/data/Entwicklung/tbot/log/tbot.log')
-tb_ctrl: Last login: Mon Apr 25 14:52:42 2016 from 87.97.29.27
-*************************************************************
-BDI2000 Assignment:    (last updated:  2015-11-20 12:30 MET)
-bdi1  => techem     bdi2  => cetec_mx25   bdi3  => lpc3250
-bdi4  => -          bdi5  => --Rev.B!--   bdi6  => tqm5200s
-bdi7  => [stefano]  bdi8  => smartweb     bdi9  => sigmatek-nand
-bdi10 => pcm052     bdi11 => socrates     bdi12 => aristainetos
-bdi13 => imx53      bdi14 => ib8315       bdi15 => cairo
-bdi16 => g2c1       bdi17 => lwe090       bdi18 => symphony
-bdi19 => dxr2       bdi20 => ima3-mx6     bdi21 => sama5d3
-bdi98 => -          bdi99 => -            bdi0  => -
-Please power off unused systems when you leave!   Thanks, wd.
-*************************************************************
-tb_ctrl: pollux:~ hs $
-tb_ctrl: export PS1=ttbott
-ttbott
-tb_ctrl: stty cols 200
-ttbott
-tb_ctrl: export TERM=vt200
-ttbott
-tb_ctrl: echo $COLUMNS
-200
-ttbott
-tb_con: Last login: Tue Apr 26 06:28:59 2016 from 87.97.29.27
-*************************************************************
-BDI2000 Assignment:    (last updated:  2015-11-20 12:30 MET)
-bdi1  => techem     bdi2  => cetec_mx25   bdi3  => lpc3250
-bdi4  => -          bdi5  => --Rev.B!--   bdi6  => tqm5200s
-bdi7  => [stefano]  bdi8  => smartweb     bdi9  => sigmatek-nand
-bdi10 => pcm052     bdi11 => socrates     bdi12 => aristainetos
-bdi13 => imx53      bdi14 => ib8315       bdi15 => cairo
-bdi16 => g2c1       bdi17 => lwe090       bdi18 => symphony
-bdi19 => dxr2       bdi20 => ima3-mx6     bdi21 => sama5d3
-bdi98 => -          bdi99 => -            bdi0  => -
-Please power off unused systems when you leave!   Thanks, wd.
-*************************************************************
-tb_con: pollux:~ hs $
-tb_con: export PS1=ttbot
-tb_con: t
-ttbott
-tb_con: stty cols 200
-ttbott
-tb_con: export TERM=vt200
-ttbott
-tb_con: echo $COLUMNS
-200
-ttbott
-tb_con: ssh hs@lena
-tb_con: hs@lena's password:
-tb_con:
-tb_con: Last login: Mon Apr 25 07:03:29 2016 from 192.168.1.1
-tb_con: [hs@lena ~]$
-tb_con: export PS1=ttbott
-ttbott
-tb_con: stty cols 200
-ttbott
-tb_con: export TERM=vt200
-ttbott
-tb_con: echo $COLUMNS
-200
-ttbott
-tb_con: kermit
-C-Kermit 8.0.211, 10 Apr 2004, for Linux
- Copyright (C) 1985, 2004,
-  Trustees of Columbia University in the City of New York.
-Type ? or HELP for help.
-(/home/hs/) C-Kermit>
-tb_con: set line /dev/ttyUSB0
-(/home/hs/) C-Kermit>
-tb_con: set speed 115200
-/dev/ttyUSB0, 115200 bps
-(/home/hs/) C-Kermit>
-tb_con: set flow-control none
-(/home/hs/) C-Kermit>
-tb_con: set carrier-watch off
-(/home/hs/) C-Kermit>
-tb_con: connect
-Connecting to /dev/ttyUSB0, speed 115200
- Escape character: Ctrl-\ (ASCII 28, FS): enabled
-Type the escape character followed by C to get back,
-or followed by ? to see other options.
-----------------------------------------------------
-tb_con: <INTERRUPT>
-U-Boot#
-tb_con: U-Boot#
-U-Boot#
-tb_con: setenv Heiko Schocher
-U-Boot#
-tb_con: printenv Heiko
-Heiko=Schocher
-U-Boot#
-[('tc_workfd_ssh.py', 1, 0), ('tc_workfd_connect_with_kermit.py', 1, 0), ('tc_ub_setenv.py', 1, 0)]
-End of TBOT: success
-hs@localhost:tbot  [event-devel] $