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--- Pavel Machek <pavel@ucw.cz> a écrit :> Hi!> > > > > I posted an email 1 month ago because I was looking for advices to design
> > a driver for a lcd device (128x64 pixels) with a t6963c controller.> > Ugh, whats wrong with standard handling via framebuffer?
>
well I already looked at framebuffers and choose to not use them because
t6963c controller does not have a frame buffer memory that can be accessed
by using mmap. It must be accessed through data write commands. So I decided
to not use them in order to save code space and speed up things.
am I wrong in my choice ?
> > I have finally choosen a console implementation to interact with the lcd.> It> > allows me to reuse code that deals with escape character or to start a> getty on> > it. Unfortunately this implemenatation doens't support lcd's graphical> mode.> > So I wrote another small driver that can be accessed through "/dev/lcd". It
> > drives the lcd only in graphical mode. That means that a "echo foo >> /dev/lcd"> > command won't work as expected.> > Look at framebuffer, that's what you want. See for example vesafb.
>
Does frame buffer have such mechanism ? if so could you point me the code that
handles it ?
cheers,
Francis
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