LCD drivers

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hi all,

I have to write various application for a vortex86 board.In that i have
got 2 X 20 LCD display.Do i have to write a driver for that from the
scratch,if so plz suggest some sites for that or is any open source
available for that and plz can anybody suggest
some details regarding this.
regards
konkan


Re: LCD drivers

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it's a character device, you can probably use a standard tty driver, and  
customise a tad.

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Re: LCD drivers

: > hi all,
: >
: > I have to write various application for a vortex86 board.In that i have
: > got 2 X 20 LCD display.Do i have to write a driver for that from the
: > scratch,if so plz suggest some sites for that or is any open source
: > available for that and plz can anybody suggest
: > some details regarding this.
: > regards
: > konkan
: >

: it's a character device, you can probably use a standard tty driver, and  
: customise a tad.

Oh yeah, just a tad :-)

Don't know the board - whats the interface to the LCD? Is it a parallel
interface?

Is the board HD44780 compatible, if so there is loads of example code out
there for driving these boards - do a google search. You may be able to
do a userspace program.

If you write a userspace daemon that is accessed by other programs via a
named pipe you have a lazypersons driver of sorts.



Re: LCD drivers
hi,
Thanx 4 the reply.Here i have got a serial interface.
i have to use this 2 x 20 Lcd for monitoring various app like 2d games
and all.

Do i have to write a driver 4 that ,or can i send datas trough the
serial port itself.will there be controller 4 this LCD.

plz give me some suggestions..
regards
konkan


Re: LCD drivers
: hi,
: Thanx 4 the reply.Here i have got a serial interface.

If it's an standard rs232 interface then it should be a no-brainer, and
you should be able to just do everything in user space.

: i have to use this 2 x 20 Lcd for monitoring various app like 2d games
: and all.

: Do i have to write a driver 4 that ,or can i send datas trough the
: serial port itself.will there be controller 4 this LCD.

: plz give me some suggestions..
: regards
: konkan


Re: LCD drivers
hi,
thank u 4 ur reponse.so what i got from ur suggestion is that,to take
the std tty
driver and to customise it according to my requirements right....

regards
konkan
jim dorey wrote:
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have
the
and  
Quoted text here. Click to load it


Re: LCD drivers

Quoted text here. Click to load it

if it has serial interface capabilities then it'll probably be a breeze to  
use the tty driver, if it's a parallel lcd it's a little more  
complicated.  you can pester the guys at lcdproc for info, but there's a  
bunch of parallel lcd's with serial modes, so the list of lcd's you  
wouldn't be able to use the standard tty drivers on are more manageable.

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