User:Tox2ik/Streamzap remote controller

Streamzap remote controller

The aim of this page is to control programs like VLC with the remote controller or to trigger custom commands and scripts.

Overview over required steps

Assuming you posses the physical device, the next actions are these.

1. plug in the receiver
2. configure the kernel (if needed)
3. load kernel modules
4. install and configure lircd
5. detect input or get feedback on button press
6. configure irexec
7. configure other programs

Kernel modules

You will need to enable the following modules / options in the kernel.

They can be found in this section:

   Prompt: LIRC user interface
     Location:
       -> Device Drivers
         -> Remote Controller support
         --- Remote Controller support
         <*>   Compile Remote Controller keymap modules
         [*]   LIRC user interface
         [ ]     Support for eBPF programs attached to lirc devices
         [ ]   Remote controller decoders  --->
         [*]   Remote Controller devices  --->
               <M>   Streamzap PC Remote IR Receiver

and here:

  Prompt: User level driver support
    Location:
      -> Device Drivers
        -> Input device support
          -> Generic input layer (needed for keyboard, mouse, ...)
            -> Miscellaneous devices
               <M>   User level driver support

After plugging in the USB-receiver `dmesg` should report the presence of the device

   [102186.881305] usb 1-5: new low-speed USB device number 15 using xhci_hcd
   [102187.012263] usb 1-5: New USB device found, idVendor=0e9c, idProduct=0000, bcdDevice= 1.00
   [102187.012264] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
   [102187.012265] usb 1-5: Product: Streamzap Remote Control
   [102187.012266] usb 1-5: Manufacturer: Streamzap, Inc.

It should also appear in the list produced by `lsusb`

   $ lsusb  | grep -i stream
   Bus 001 Device 015: ID 0e9c:0000 Streamzap, Inc. Streamzap Remote Control

Install the receiver-reader daemon

root #emerge --ask app-misc/lirc {{{1}}}

examples

controlling the volume (with alsa)

Create these two files.

FILE ~/.lirc/irexec.lircrccall volume script with irexec

begin
      prog   = irexec
      button = KEY_VOLUMEUP
      repeat = 1
      config = dash -c 'vol_delta=1; . ~/.config/volume.sh; volume M; volume +'
  end
  begin
      prog   = irexec
      button = KEY_VOLUMEDOWN
      repeat = 1
      config = dash -c 'vol_delta=1; . ~/.config/volume.sh; volume M; volume -'
  end
  begin
      prog   = irexec
      button = KEY_MUTE
      config = dash ~/.config/volume.sh m
      config = dash ~/.config/volume.sh M'
  end

This one will run under bash as well.

FILE ~/.config/volume.fn.shamixer wrapper

#!/bin/dash
volume() { 
	local v= delta=${vol_delta:-3}
	percent() { grep -o '[0-9]\+%' | tr -d %; };
	absolute() { awk 'END{ print $3}'; };
	case $1 in 
		('') amixer sget Master | percent ;;
		(A) amixer sget Master | absolute ;;
		(p) amixer sset Master Playback $2 | tail -n1 ;;
		([0-9]*) amixer sset Master $1% | tail -n1;;
		(+) volume p $(( $delta + `volume A` )) | percent ;;
		(-) volume p $(( `volume A` - $delta )) | percent ;;
		(m) amixer sset Master mute >/dev/null ; echo muted;;
		(M) amixer sset Master unmute >/dev/null ;;
		(*) amixer scontrols | awk -F"'" '{ printf "%s\n", $2 }' | column;
		    echo; amixer sget Master
	esac
}
volume $@
# vim: ft=sh

Run irexec and press the volume buttons and you should see the current volume level.

user $irexec ~/.lirc/irexec.lircrc

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