Serial Debug mode

First confirm you are correctly connected to the serial port by
issuing a few of the commands documented in the LG manual.

Now type "debug" and hit ENTER.  Nothing will echo back.

You are now in debug mode.  Enter one of the debug modes by typing
a single character without an ENTER after it.

New modes available are:

u	Enter UI test mode

d	Enter the main debug menu.

x	Exit debug back to Product mode

UI Test menu:

=================== [ UI Keyboard Test Mode ] ===================
    '0' ~ '9' : Number Key,     '-' : Dash
    ',' : Vol.Down,   '.' : Vol.Up,  '>' : Ch.Up,  '<' Ch.Down
    '[' : Up,         '/' : Down,    ';' : Left,  ''' : Right
    'M' : Main Menu,  'H' : Home Menu,   'X' : Exit,      'I' : Brief Info.
    'B' : flashBack,  'A' : SAP(audio),  'U' : Mute,      'P' : Pip
    'R' : Ratio,      'V' : Ext.Input,   'C' : Caption,   'F' : favorite
    'D' : DW TS,      'E' : HDMI_CEC     'G' : Guide,     's' : INSTOP
    'K' : In start,    'L' : Adjust
   [ESC] : UI Keyboard Mode Exit
=================================================================

Debug mode menu:

Main menu:
    help,?   Print this help message
    ============================================================
  * show     Show Various status
    ver      Show VERsion data
    sh       Excute OS shell
    md       Memory dump
    mm       Modify memory
    mf       Memory fill
    mmap     Map kernel physical memory to user vitrual memory
    dsm      Disassemble memory
    regs     Dump current exception registers
    i2cd     Dump I2C Device
    i2cm     Modify I2C Device
    nvmd     Dump NVRAM Device
    nvmm     Modify NVRAM Device
    nvmclr   Clear(Reset) NVRAM
    num      Print number in hex/dec/bin
    uptime   Print system up time
    pdm      XX_PRINTF() off/on control
    call     Call a function
    reset    Reset system
    mtd      Show current MTD. map info.
    cfg      Show current CFG. set value
  * orgm     Enter Org style debug menu

show:

    ------ systemInfo   ----------------------------------------
    task     Show OSA Task status
    sema     Show OSA Sema4 status
    msg      Show OSA MsgQ status
    rcode    Show current region code
    ============================================================
    exit     Exit from systemInfo menu

ver:
  --------------------------------------------------------------------------------------------
  Package  Version     DateOfCompilation     builder@computer:/directory
  UserApp  V0.1.53.64  May 21 2009, 20:29:26 ainaying@swfarm-l2:/home/work/ainaying/Server_PQ/src/apps/prj/atsc_saturn5
  -------  SVN r14006
  --------------------------------------------------------------------------------------------

Ok, so we know they use svn at LG.  And now we have yet another version number
to keep track of.  Firmware version, kernel version, app version, U-Boot, etc.  Bleh.

sh:	Drops you into busybox as root.  If you aren't linux literate go
	get a PC linux distro and learn somewhere safe.

i2cd:
	Says:  "Not implemented yet, Sorry
		If you really want this menu, do it yourself"
	Ok, I accept your challenge LG, may I have the source now?

nvmd:	Don't use, causes a segfault followed by a reboot.

nvmm:	Very crude tool.  Use 0x32 on the org menu instead.

uptime:	Display system uptime in seconds

mtd:

mtd00: 00020000-00004000 bbminfo
mtd01: 00040000-00004000 boot
mtd02: 00020000-00004000 mtdinfo
mtd03: 00180000-00004000 rootfs
mtd04: 00020000-00004000 model
mtd05: 00500000-00004000 emanual
mtd06: 00400000-00004000 ezcal
mtd07: 00280000-00004000 kernel
mtd08: 00900000-00004000 lgapp
mtd09: 00380000-00004000 lgres
mtd10: 00900000-00004000 lgfont
mtd11: 00280000-00004000 kernel
mtd12: 00900000-00004000 lgapp
mtd13: 00380000-00004000 lgres
mtd14: 00900000-00004000 lgfont
mtd15: 00020000-00004000 recdb
mtd16: 00040000-00004000 system
mtd17: 00260000-00004000 user
mtd18: 00200000-00004000 reserved

This information isn't even on the same planet with correct.
The information from the kernel's bootup messages are entirely
different and are 'correct' in the sense that they are what is
actually being used by the running system.