[Lcdproc] Can't get this thing working...
bsdfan at nurfuerspam.de
Sat Dec 26 22:46:56 UTC 2009
Joris Robijn wrote:
> On 26 Dec 2009 at 10:36, Thorsten Godau wrote:
>> Can i use the keymatrix connected to the LPT in parallel?
>> How do i have to extend my LCDd.conf (somewhere i read, that i can use
>> more than one devices in the hd44780-section...)?
> Hi Thorsten,
> I think you can. The driver should (repeat: should) be capable of
> instantiating twice. In the the config file you can indicate for each
> driver what module (.so file) to load. That way, you can load the same
> module twice. This is done with the File= parameter of a driver. By
> default it loads the same filename as the drivername. For example:
> # this one loads hd44780.so because filename is unspecified
> # ... here specify your ususal parameters
> type=lcd2usb #or whatever
> File=hd44780.so # forced filename
> The first driver loaded is the primary driver and this one determines
> things like display size reported to clients. Keys can come from any
> driver. You can also load the curses driver only to generate keypresses
> for your hd44780 display.
> I hope all this information is still true, I haven't played with this
> stuff very much lately.
Markus Dolze wrote:
> I don't think this is possible. There is currently no 'input only'
> driver for parallel port connected keypads. Out of those drivers using
> a parallel port only hd44780 supports keypads, but you cannot use two
> hd44780 drivers. If at all, you can only use different drivers.
I was wrong about this (thanks Joris for pointing this out). I looked it
up and it seems the necessary code is still there, although I think it
(multiple "Driver=" lines). Everything else should work like described
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