View source for Volume Knob on Antec Fusion

[[Image:Fusion.jpg]]

Antec Fusion has this big, nice-looking volume knob.  It would also be nice to let it actually do something.  The following are the steps I took to make it to work nicely with an MCE remote.  My Myth box was based on Fedora Core 6, installed using RPMs from Fedora and ATRpms as much as possible.  If you have a system based on another distribution, adapt the steps accordingly.

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{{Note box| In mid 2007 Antec released Version 2 of the silver case and a black version. The V2 silver case contains an updated iMon OEM VFD module with integrated IR receiver, which differs from the original case which contained an OEM iMon VFD with no IR receiver. Many (Windows) users on the SoundGraph forum have reported heavy restrictions in the later revision that break compatibility with the earlier version. The black version contains an iMon OEM LCD module which currently does not work with Lirc or LcdPROC(see [[Imon]] page for more details). The instructions on this page are currently valid for the original Antec Fusion case and Version 2 of the silver case, and may not be appropriate for the black version.

'''Update Oct 2007''' patch for Black Fusion available [http://codeka.com/blogs/ here].
IR receiver in Black Fusion is working with MCE remotes. [http://mythbuntu.nl/hardware/antec-fusion-v2-imon-lcd-lirc-installation-guide Use this guide for a cut and paste howto].
}}




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====Get the VFD to work====

I followed the [[LCDproc]] page and made the VFD work.

====Edit udev rules====

There are two lirc devices on the system (in my case, lirc_imon, and lirc_mceusb2), but it's sort of random that which device is  assigned lirc0 or lirc1 at boot time.  So we need udev to make some symlinks with unique names to point to the correct devices.  

Edit /etc/udev/rules.d/lirc.rules, and add the following lines to the end of the file.  You need to change the idVendor for your own devices.

 KERNEL=="lirc[0-9]*", SYSFS{idVendor}=="0471", SYMLINK+="lirc_mce"
 KERNEL=="lirc[0-9]*", SYSFS{idVendor}=="15c2", SYMLINK+="lirc_imon"

If you need info on how to write udev rules, or on how to find out
unique SYSFS attributes you can use to write the rules, see [http://reactivated.net/writing_udev_rules.html here]. New versions of udev will need SYSFS to be replaced with ATTR.

For some devices, such as the Hauppauge PVR-150, the idVendor can be tricky to find. In which case, you can try to assign the symlink based in the character device number. Running 

 ls -l /dev/lirc* 

will show the lirc devices

 crw-rw---- 1 root root 61, 0 2008-01-20 19:45 /dev/lirc0
 crw-rw---- 1 root root 61, 1 2008-01-20 19:45 /dev/lirc1

If you are confident the latter is the PVR device, you can assign a symlink using 

 KERNEL=="lirc[0-9]*", ATTR{dev}=="61:1", SYMLINK+="lirc_pvr"

Although this will fail if the assigment is truly random, it usually isn't if you are not making changes to your system, and this trick enables you to follow the rest of this guide.

====Add entries to lircd.conf====

Following this [http://ubuntuforums.org/showthread.php?t=306437 thread], I added these lines into /etc/lircd.conf

 begin remote
   name  ClickWheel
   bits           24
   eps            30
   aeps          100
 
   one             0     0
   zero            0     0
   post_data_bits  8
   post_data      0xFF
   gap          131993
   toggle_bit      0
 
   begin codes
        WheelCC                  0x010000
        WheelCW                  0x000100
        WheelClick               0x000008
   end codes
 end remote

Newer versions may require the following two lines to be adjusted:
  post_data_bits  48
  post_data      0xFFFFFF35EE

====Edit /etc/sysconfig/lircd====

Edit /etc/sysconfig/lircd (or /etc/lirc/hardware.conf for Ubuntu) to read as follows

 # Options to lircd
 LIRCD_OPTIONS="--driver=default --device=/dev/lirc_mce --output=/dev/lircd --pidfile=/var/run/lircd.pid --connect=localhost:8765"
 LIRCD1_OPTIONS="--driver=default --device=/dev/lirc_imon --output=/dev/lircd1 --pidfile=/var/run/lircd1.pid --listen"

Modify the device names according to whatever symlinks you've chosen for your devices.

====Edit /etc/init.d/lircd====

'''Replace''' the line

 <strike>daemon lircd $LIRCD_OPTIONS</strike>

with these two lines

 lircd $LIRCD1_OPTIONS
 lircd $LIRCD_OPTIONS

And '''add''' after the line

 killproc lircd

another line that reads

 killproc lircd1

Note that this will start the first lircd instance with "--listen" then a second instance using "--connect".  You have to start them in this order for it to work.

====Edit .mythtv/lircrc====

Add the following section to .lircrc.

 begin
   prog = mythtv
   button = WheelCW
   repeat = 1
   config = ]
 end
  
 begin
   prog = mythtv
   button = WheelCC
   repeat = 1
   config = [
 end

You can increase the repeat number to make the wheel less sensitive.  But I've found that it feels the best by letting repeat=1, which makes every notch count.

====Restart udev, lircd, and mythfrontend to test====


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*'''A word of warning:
'''System updates can and most likely will replace these edited files with updated originals.  Making backups of your edited files can assist you in re-creating your edits after a system update, saving you the time of looking up your vendor strings again.


[[Category:Character Displays and Controls]]
[[Category:LIRC_Configuration_Files]]