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Not Working Yet

These are the niggles I haven't fixed yet... Always work in progress

Mute does not work, even though it sends a pipe / bar character    |

Output codes

The remote shows up as a USB attached keyboard, and it can also send mouse events. You cannot change the keycodes that the remote sends, you can only change what your computer does when it receives the keystroke. Here's a full list of the keystrokes it sends. Please remember Keycodes aren't ascii or hex or anything, they're just numbers for your xserver to respond to.

I've listed which key is pressed as far as I can see, including if its the left or the right key. Mythtv makes no use of the windows key, so you can use "Desktop" to delete because win+D is treated the same as a D on its own.

Xmodmap content

1. Just put this file in ~/.Xmodmap

   ! volume down
   keycode 122 = bracketleft
   
   ! volume up
   keycode 123 = bracketright
   
   ! Play/Pause
   keycode 172 = p
   
   ! Stop key
   keycode 164 = p
   
   ! Mute 
   keycode 160 = bar
   
   
   

2. Then add a line to ~/.Xsession to call

   /usr/bin/xmodmap ~/.Xmodmap 
   

   which will load the modified keymap.

The Other Way

The other way to do this is to modify the key bindings in mythfrontend so that the key combo sent by the remote does what you expect. I have not persued this line.

The main drawback of this is that the frontend's regular keyboard would be affected, if you assigned a key to do something else.

Output of lsusb -v

Bus 003 Device 003: ID 073a:2230 Chaplet Systems, Inc. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x073a Chaplet Systems, Inc.
  idProduct          0x2230 
  bcdDevice            2.00
  iManufacturer           0 
  iProduct                0 
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           41
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      1 Boot Interface Subclass
      bInterfaceProtocol      2 Mouse
      iInterface              0 
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.10
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength     239
         Report Descriptors: 
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval              10
Device Status:     0x0002
  (Bus Powered)
  Remote Wakeup Enabled

Output of dmesg

[553793.104050] usb 3-2: new low speed USB device using uhci_hcd and address 3
[553794.403024] usb 3-2: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 1
[553794.403032] usb 3-2: New USB device found, idVendor=073a, idProduct=2230
[553794.403036] usb 3-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[553794.445816] input: HID 073a:2230 as /devices/pci0000:00/0000:00:1d.1/usb3/3-2/3-2:1.0/input/input6
[553794.445993] generic-usb 0003:073A:2230.0004: input,hidraw2: USB HID v1.10 Keyboard [HID 073a:2230] on usb-0000:00:1d.1-2/input0

Other Interesting Stuff

• Seems that if you remove the IR cover, the transmit angle improves - NOT TESTED
• Mouse up-key tends to go up and left.
• Numlock toggles through this sequence:
  1. Arrow Keys (start mode)
  2. Lowercase letters
  3. Uppercase letters
  4. Lowercase letters and back to the start.
• The ABCD buttons are odd. Each button sends all 3 hotkeys at once. For example, pressing A sends Ctrl+Alt+A, Ctrl+Alt+1 and Ctrl+Alt+F1 all at the same. So they're basically giving you a choice of keys, but you wouldn't ever use more than 1 in each group of 3. A user on DX named mdavej did a little experiment and made 3 different winidows shortcuts using Ctrl+Alt+A, 1 and F1 as the hotkeys, and they all opened at the same time from just a single press of the A key.
• Under Linux, the ABCD keys will change your virtual console, so don't press them. Or set your X session to run on VC4

More details will be added over time. Any queries - email me from this mailer page

This file last modified Friday July 14, 2017

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