Re: framebuffer for LCD connected to GPIO's
From: Jaya Kumar <hidden>
Date: 2007-05-14 15:40:15
On 5/14/07, vishnu tadepalli [off-list ref] wrote:
sir,
No "sir". We're all equals in the FOSS world. :-)
Iam using an ARM 7 based MCU(HMS30c7202),i have interfcaed an 128*64 greyscale LCD using GPIOs.I would like your help in knowing how to write the LCD driver and how to proceed with the framebuffer driver.anybody please help me out,thanks in advance.
I'd encourage you to do the interface to the LCD in userspace if you're planning to only have 128x64. That'll be easier to debug and get working. If you really do want to have a /dev/fbx type interface then you might want to look through drivers/video and also how the arm gpio drivers work in arch/arm. You're using an ARM7 and I'm guessing it's MMU-less so deferred IO won't be helpful in this case. LDD3 ( http://lwn.net/Kernel/LDD3/ ) may also be useful. Hope that helps. Best regards, jayakumar ps: gmail accounts are free and they don't append ads to your emails.
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