2010-06-23 16:31:17 lcd4linux support?

Hans Waldmann (UNITED STATES)

Message: 90569

Hi PTG

Is there any support for lcd4linux in the distribution? We have a customer that suggests using it, but we are not that familiar yet with it.

Hans

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2010-06-23 18:21:37 Re: lcd4linux support?

Robin Getz (UNITED STATES)

Message: 90570

Hans:

https://docs.blackfin.uclinux.org/doku.php?id=blackfin_twi_lcd_hd44780_based_driver

-Robin

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2010-06-24 13:36:37 Re: lcd4linux support?

Hans Waldmann (UNITED STATES)

Message: 90598

Robin,

I did have a look at this documentation page earlier and I searched in the whole documentation wiki for lcd4linux. But I did not see any direct reference to the same. Are you saying that there is support for lcd4linux framework in the distribution, and can be accessed using the driver you referred to?

By the way, it looks like the documention wiki is down.

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2010-06-24 14:17:56 Re: lcd4linux support?

Mike Frysinger (UNITED STATES)

Message: 90601

no, that isnt what he's saying

that is an example kernel driver for hooking up a specific text LCD device. and then some simple examples for displaying text on it.

lcd4linux isnt anything special. it isnt a driver framework, nor does it provide any kernel drivers. we havent worked on the package and dont plan to. i imagine it would be like cross-compiling any other open source package.

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2010-06-24 14:30:02 Re: lcd4linux support?

Hans Waldmann (UNITED STATES)

Message: 90605

It looks like lcd4linux is a GUI application framework that can be used to display text, graphics and widgets on an LCD which supports that. The lcd driver has to be writting according to the framework's driver interface template.

The device you mentioned looks to be a dot-matrix which is only suitable for alpha-numeric display. Are there any lcd drivers in the distribution which support full graphics according to some standard framework?

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2010-06-24 21:20:15 Re: lcd4linux support?

Mike Frysinger (UNITED STATES)

Message: 90616

there are many framebuffer drivers that work on 16/24 bit LCDs connected to Blackfin boards

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2010-06-28 15:43:47 Re: lcd4linux support?

Robin Getz (UNITED STATES)

Message: 90705

Hans:

ssl.bulix.org/projects/lcd4linux/

LCD4Linux is a small program that grabs information from the kernel and some subsystems and displays it on an external liquid crystal display.