Simulated USB Keyboard + WebEnd Keyboard

[b-rad.cc]

Hello,

Something new that i've developed is a 'fake' usb keyboard. This software tricks dmaosd into thinking there is always a real keyboard attached to the wdtv, which means I can then inject keyboard scan codes into the input stream and we get a console-input / web keyboard.

usage:

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fakekey <single character>

examples:

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fakekey a
fakekey ' '

no newline is added
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usage:

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fakekey [-n] <string>

examples:

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fakekey 'this is a test string'

newline is added automatically + characters are injected every 250ms to ensure none are dropped.
-n to suppress default newline.
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usage: (Special meta commands - HOME/ENTER/UP/DOWN/LEFT/RIGHT/ESCAPE/BACKSPACE/DELETE/PAGEUP/PAGEDOWN)

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fakekey <meta command>

examples:

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fakekey HOME
fakekey UP
fakekey ENTER
fakekey ESCAPE

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full help:

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fakekey -h
keyboard injector 0.0.7 - © b-rad - http://nextdimension.cc - http://wdlxtv.com
  usage: fakekey [-n|-h] <input>
   options:
      -h   this help
      -n   no newline after input
   input:
      single character without newline
      string with newline added (default)
      meta character:
         - HOME
         - ENTER
         - UP
         - DOWN
         - LEFT
         - RIGHT
         - ESCAPE (back)
         - BACKSPACE
         - DELETE
         - PAGEUP (previous |<<)
         - PAGEDOWN (next >>|)

capitalization and normal special characters are handled. Basically any key of worth on a standard US keyboard is available, which translates to anything in ASCII range 32-127.

still need to do / bugs:
- detect real usb keyboards hot plugged after boot and relay their input events
- 'invalid character' message, but still works


Webend keyboard finished!

Webend Keyboard features:
- designed for 800x480 phone display
- all mapped keys are portrayed
- buttons are sent to the OSD as they are pushed
- clear button to wipe keyboard output display
- all real keyboard key presses are sent to the OSD while the web keyboard has focus
- confirmed working in firefox, opera, & android 2.2 (hw & sw kb)

webend keyboard bugs:
- android (2.2) hardware arrow keys don't work
- androiod (2.2) hardware backspace doesn't always work
- single quote not working on some systems
- backspace works as spacebar in some systems (?)
- backslash logs out on some systems, duplicate character & newline on others
- opera mobile & other browsers formatting issues, rolling keys to the next row
- android (3.1) formatting is off
- special characters (!$%&) don't work with android keyboard (gingerbread)

virtualkeyboard.app.bin
This app.bin requires WDLXTV based off official firmware 1.03.49 or higher

please tell me what you think

[recliq]

- i think both would be quite useful single keys and lines. Since i don't know what fakekey actually does maybe it would make sense to split this either in two commands (fakekey/fakeline) or make fakekey having two modes.
- metakey seem fine to me...
- does this maybe help with your caps problem?
http://www.win.tue.nl/~aeb/linux/kbd/scancodes.html

[b-rad.cc]

I found the authoritative list in includes/linux/input.h.

I've done a bit more toying around and i think i'll just process argv[1]. if its more than one character i'll add a newline, but still offer -n, like echo. This make it deviate from echo's behavior only in the single character case.

Theres one other bit I have to work in...dmaosd only pairs with one keyboard. This is not an issue if the real keyboard is paired, since thats just simple scan code injection...but if the fake keyboard gets paired then all keys from the real keyboard must then be intercepted and relayed to the fake keyboard...so that both work simultaneously. Not really hard, but will require a little thread checking for new keyboards.

[b-rad.cc]

oh, and i figured out capitals and 'upper case numbers' (!@#$%^) and caps lock. I won't be supporting caps lock, but upper case will be.

[b-rad.cc]

ok, working code & samples included in top post

PLAY & REVIEW

[b-rad.cc]

bump...help messages and 'no newline' parameter added...

[juliojs]

Great!

I was waiting for this feature to drop the onscreen keyboard feature from the android app.

EDIT: Test made with the first version not version with the help and no new line.
After some test:
- I'm getting a "invalid character!" warning/error sending any character or test.
- Some characters are dropped randomly. Maybe due to sleep time? I'm using 350ms between commands on the android app, but it's via a network connection so the 150ms should be enought...
- Sometimes new line (fake the OK button) is not working.
- Known issue / request: Special characters (áéíóú... etc) are not working. Any plans on support them? Important for non-english users

Here is a full log of my test (text after **** is my comment):

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# fakekey a         **** OK - NO NEW LINE
Single character: 'a' / 97 / 30

# fakekey test         **** OK - NEW LINE
invalid character!

# fakekey 'test'      **** missing 's' character (tet)- NEW LINE
invalid character!

# fakekey 'test'      **** OK - NO NEW LINE
invalid character!

# fakekey 'test'      **** missing 's' character (tet)- NEW LINE
invalid character!

# fakekey 'test'      **** missing 's' character (tet)- NEW LINE
invalid character!

# fakekey 'test'      **** OK - NEW LINE
invalid character!

# fakekey 'test'      **** OK - NEW LINE
invalid character!

# fakekey 'test'      **** OK - NEW LINE
invalid character!

# fakekey test         **** OK - NEW LINE
invalid character!

# fakekey test         **** OK - NEW LINE
invalid character!

# fakekey test         **** OK - NEW LINE
invalid character!

# fakekey 'Test'      **** missing 's' character (Tet)- NEW LINE
invalid character!

# fakekey 'Test'      **** OK - NEW LINE
invalid character!

# fakekey 'Test'      **** missing 't' character (Tes)- NEW LINE
invalid character!

# fakekey 'Test'      **** OK - NEW LINE
invalid character!

# fakekey 'Test'      **** missing 't' character (Tes)- NEW LINE
invalid character!

# fakekey 'Test'      **** OK - NEW LINE
invalid character!

# fakekey 'Test'      **** missing 't' character (Tes)- NEW LINE
invalid character!

# fakekey 'Test'      **** OK - NEW LINE
invalid character!

# fakekey 'Test'      **** missing 's' character (Tet)- NEW LINE
invalid character!

# fakekey 'Test'      **** OK - NEW LINE
invalid character!

# fakekey 'Test'      **** OK - NEW LINE
invalid character!

# fakekey 'Test'      **** OK - NEW LINE
invalid character!

# fakekey 'this is a test'   **** OK - NEW LINE
invalid character!

# fakekey 'this is a test'   **** missing ' ' character (thisis a test)- NEW LINE
invalid character!

# fakekey 'this is a test'   **** missing ' ' character (thisis a test)- NEW LINE
invalid character!

# fakekey 'this is a test'   **** OK - NEW LINE
invalid character!

# fakekey 'this is a test'   **** missing 'i' character (ths is a test)- NEW LINE
invalid character!

# fakekey 'this is a test'   **** OK - NEW LINE
invalid character!

# fakekey 'this is a test'   **** OK - NEW LINE
invalid character!

# fakekey 'this is a test'   **** missing 's' character (thi is a test)- NEW LINE
invalid character!

# fakekey 'this is a test'   **** missing two ' ' character (thisisa test)- NEW LINE
invalid character!

# fakekey 'this is a test'   **** missing ' ' character (this isa test)- NEW LINE
invalid character!

# fakekey 'ThIs Is A tEsT'   **** missing ' ' character ('ThIsIs A tEsT')- NEW LINE
invalid character!

# fakekey 'ThIs Is A tEsT'   **** missing 's' character ('ThIsIs A tET')- NEW LINE
invalid character!

# fakekey 'ThIs Is A tEsT'   **** missing 'I' character ('Ths Is A tET')- NEW LINE
invalid character!

thanks!

[b-rad.cc]

i've bumped the delay to 250ms to see if no keys are dropped now.

I don't really have any intention on supporting extended ascii. None of those characters have real scan codes. You find me the exact scan codes to send to an input device to generate each individual character and I'll consider adding them, but note this would also complicate the original elegance of this program and would probably require a rewrite.

[b-rad.cc]

*BUMP*

updated app.bin, renamed to virtualkeyboard.app.bin

delete the old fakekbd.app.bin and try this new one out...it includes a fully functional webend keyboard now

[b-rad.cc]

*BUMP*

updated web keyboard.
- styled to maximize view on an 800x480 screen...aka my epic 4g
- added arrow keys, home, and escape/back