[Lcdproc] Make a driver for Mplay blast vfd from VLsystem corp.

[Peter Marschall]

Hi Benoit,

On Sunday, 8. April 2007 18:30, Benoit Laurent wrote:
Benoit Laurent <ben905@free.fr>> Hi all,
>
> I have in project to write a driver for the mplay module (mine is the one
> in HD135 Zalman case) and i want to know if anybody is interesting in
> helping me to write or test it.
>
> The module is compose with a 20x2 vfd display, a remote controle, 2 fans
> and 2 thermo sensors.
>
> The vfd is compatible with the LIS2 driver exept that we need to modify the
> baud rate. I actualy use this hack but I'm not fully satisfy and my goal is
> to write a driver that enable all the features of the module (backligth
> control, modificable font, remote control (with lirc), fan control and
> thermal sensor) . I actualy have all the information that i'm need about
> the protocol but i don't really know where to start for the rest, if you
> have any ideas about possible driver architecture or advise, this will be
> welcome.


if the display is almost compatible with the LIS2, as a first step you can
write a patch to allow the lis2 connection type to set the interface speed 
depending on the Speed config option.

BTW I quite convinced that the display in your case is one of the LIS series
made by vlsys.co.kr.
So I'd rather have it supproted using the lis2 driver than another one.

Regarding the features you mention, I guess a lot is already in LCDproc:
- backligth control: supported by the server core, but maybe not yet 
  by the HD44780 driver (resp. the lis2 connectuion type in the hd44780
  driver)
- modificable font: horizonal/vertical bars as well as large numbers are
  supproted by LCDproc
- remote control (with lirc): have a look at the lirc input driver
- fan control and thermal sensor: LCDproc does not have an infrstructure
  for that.

Hope it helps
Peter 



-- 
Peter Marschall
peter@adpm.de