[mythtv-users] Configuring a linux-input layer remote without lirc?

[Daniel Carter]

SOLVED!

To anyone in the same situation, with a remote that works out the box with
the linux input layer,  I have finally got myth to play with it by using
inputlirc.

This is a 'fake' lircd that just reads remote presses from the kernel input
layer.  So programs like myth where you can't configure 'unusual' keys in
the keybindings, but they can talk to lirc, can be made to work.

There's still the absurdity of lircrc, where you configure myth to map the
input-layer KEY_FASTFORWARD to keypress Right, then have myth-web configure
keypress Right to be FastForward.  But saves a whole lot of pain having to
setup lircd.conf and lirc kernel modules etc etc.

HTH,
-dan.


On 10/07/2007, Daniel Carter <dantheperson at gmail.com> wrote:
>
> Hello,
>
> I've got a KWorld PCI DVB card that came with a remote control that'd i'd
> like to use with myth.
>
> I spent many days trying to get this going under ubuntu 6.06LTS with lirc
> but could never get sensible events out of lirc.
>
> Now i'm giving it another go after a harddrive upgrade with ubuntu 7.04.
> It seems with the new remote control support added to the kernel these days
> 50% of the keys are working straight out of the box :)
>
> I'd like to configure the other half of the keys, and without messing
> about with lirc if at all possible.  I have three problems to resolve, and
> none of the existing documentation seems to be any help as it all assumes
> lirc is needed for the remote to work.
>
> 1) Some of the keys generate X11 key symbols that are not mapped in myth
> 2) Some of the keys generate keycodes that are not mapped to X11 key
> symbols.
> 3) Some of the keys do nothing.
>
> First, an example of a key that works, there is a button on my remote that
> looks like an enter key, and this works out of the box in myth as the enter
> key. xev output shows:
>
> KeyPress event, serial 30, synthetic NO, window 0xe00001,
>     root 0x48, subw 0x0, time 7114733, (-84,38), root:(360,288),
>     state 0x0, keycode 36 (keysym 0xff0d, Return), same_screen YES,
> "   XLookupString gives 1 bytes: (0d) "
> "   XmbLookupString gives 1 bytes: (0d) "
>     XFilterEvent returns: False
>
> Now, for problem 1, if i press the mute button, this generates the key
> symbol XF86AudioMute.
>
> KeyPress event, serial 27, synthetic NO, window 0xe00001,
>     root 0x48, subw 0x0, time 7308633, (153,247), root:(360,288),
>     state 0x0, keycode 160 (keysym 0x1008ff12, XF86AudioMute), same_screen
> YES,
>     XLookupString gives 0 bytes:
>     XmbLookupString gives 0 bytes:
>     XFilterEvent returns: False
>
> I've tried adding this to the keyboard mapping in mythweb, saved, and
> restarted the frontend, but the mute button does nothing.  How can i make
> myth respond to the "XF86AudioMute" key?
>
> For problem 2, i get this xev output:
>
> KeyPress event, serial 30, synthetic NO, window 0xe00001,
>     root 0x48, subw 0x0, time 4101920, (177,-26), root:(360,288),
>     state 0x0, keycode 177 (keysym 0x0, NoSymbol), same_screen YES,
>     XLookupString gives 0 bytes:
>     XmbLookupString gives 0 bytes:
>     XFilterEvent returns: False
>
> I should be able to figure out how to map a keycode to a key symbol from
> the X docs unless anyone has other suggestions?
>
> For problem 3, xev simply outputs nothing, as though i hadn't even pressed
> the key. Any ideas on this one?
>
> If i can just solve problem 1, this should allow me to get enough keys for
> a pretty usable remote, getting it all going would be much better...
>
> TIA,
> dan.
>
> Hardware is:
>
> 00:14.0 Multimedia video controller: Conexant CX23880/1/2/3 PCI Video and
> Audio Decoder (rev 05)
>         Subsystem: KWorld Computer Co. Ltd. KWorld/VStream XPert DVB-T
>         Flags: bus master, medium devsel, latency 32, IRQ 11
>         Memory at e6000000 (32-bit, non-prefetchable) [size=16M]
>         Capabilities: [44] Vital Product Data
>         Capabilities: [4c] Power Management version 2
>
> 00:14.2 Multimedia controller: Conexant CX23880/1/2/3 PCI Video and Audio
> Decoder [MPEG Port] (rev 05)
>         Subsystem: KWorld Computer Co. Ltd. KWorld/VStream XPert DVB-T
>         Flags: bus master, medium devsel, latency 32, IRQ 11
>         Memory at e7000000 (32-bit, non-prefetchable) [size=16M]
>         Capabilities: [4c] Power Management version 2
>
>
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