[kwlug-disc] Presentation Pointer

[Chris Irwin]

Since you're using xfce (and therefore Xorg) you might want to try out
`xev`.

Run it in a terminal, and with focus on the window it creates, press the
buttons on the presenter. It will output whatever key presses it sees to
the terminal (this may be very noisy, with key up/down events, etc).

This will at least tell you if the key presses are getting as far as X11
and simply nothing is handling them, or if you need to dig further. It may
also output the key names you need to bind with other tools.

On Fri, Mar 16, 2018 at 12:14 PM, Khalid Baheyeldin <kb at 2bits.com> wrote:

> I got a 2.4GHz Presentation Laser Pointer from eBay. It has a small USB
> dongle, and 4 keys.
>
> https://www.ebay.ca/itm/2-4GHz-Wireless-Presenter-USB-
> Remote-Control-Presentation-Mouse-Laser-Pointer-CA/112366784517
>
> The same pointer is sold under known brand names, such as Targus, ...etc.
>
> When I plug it in, it is recognized as a keyboard:
>
> [831101.349593] usb 2-1.2: new low-speed USB device number 62 using
> ehci-pci
> [831101.449908] usb 2-1.2: New USB device found, idVendor=2571,
> idProduct=4101
> [831101.449917] usb 2-1.2: New USB device strings: Mfr=1, Product=2,
> SerialNumber=0
> [831101.449921] usb 2-1.2: Product: HAS HS304
> [831101.449925] usb 2-1.2: Manufacturer: HAS
> [831101.457195] input: HAS   HAS HS304 as /devices/pci0000:00/0000:00:
> 1d.0/usb2/2-1/2-1.2/2-1.2:1.0/0003:2571:4101.0019/input/input57
> [831101.509901] hid-generic 0003:2571:4101.0019: input,hidraw2: USB HID
> v1.11 Keyboard [HAS   HAS HS304] on usb-0000:00:1d.0-1.2/input0
> [831101.514417] input: HAS   HAS HS304 as /devices/pci0000:00/0000:00:
> 1d.0/usb2/2-1/2-1.2/2-1.2:1.1/0003:2571:4101.001A/input/input58
> [831101.570063] hid-generic 0003:2571:4101.001A: input,hidraw3: USB HID
> v1.11 Mouse [HAS   HAS HS304] on usb-0000:00:1d.0-1.2/input1
>
>
> When I start LibreOffice and press the buttons, nothing happens.
>
> When I open a Terminal from XFCE, nothing happens.
>
> But when I press Ctrl-Alt-F2 and login to a native terminal, the escape
> codes do show up in that terminal.
>
> Here is a hex dump of the four buttons, separated by some dashes. All four
> buttons do send stuff. Three send escape codes, and one sends just a plain
> lower case b.
>
> 00000000  1b 5b 35 7e 2d 2d 2d 2d  2d 62 2d 2d 2d 2d 2d 1b
> |.[5~-----b-----.|
> 00000010  5b 36 7e 2d 2d 2d 2d 2d  1b 5b 33 31 7e 2d 2d 2d
> |[6~-----.[31~---|
> 00000020  2d 2d 0a                                          |--.|
>
> So, my question is, how to make such a 'keyboard' work from LibreOffice
> under XFCE?
>
> --
> Khalid M. Baheyeldin
> 2bits.com, Inc.
> Fast Reliable Drupal
> Drupal optimization, development, customization and consulting.
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>
>
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>


-- 
Chris Irwin
<chris at chrisirwin.ca>
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