Hi at all,

I want to conect a monitor elo touch to at91sam9261. I've a bit miss in my investigation.
I known that this board have an encoder chrontel 7026 VGA that this able to print the same framebuffer that be print in LCD TFT.

In the default configuration of at91sam9261, works elo touch at same resolution as LCD TFT I mean, 320x240-24. I looked that on the boot of the kernel, this load two framebuffers:

fb0: Is for atmel lcd of 225KiB (It needed for resolution TFT-LCD 320x240x3 = 230400)
fb1: Is a virtual frame buffer of 1MB

I suspect that with only change the resolution of boot virtual frame I can get my objective, because the resolution of LCD-TFT is configured on U-BOOT proces and if there is a framebuffer with resolution equal or greather is not a problem. I have some doubts.... Correctme if I be wrong.

Can change the resolution of fb0 to 800x600 at 16 bits and,of course, reserve memory to 960000 bytes ? Which file source code of kernel there are the configuration of boot frame buffers? I founded the fbset utility that sets resolution of framebuffer but I don't tried to use.

If anybody don't have any answer, I would like to known if is posible configure elo-touch or vga monitor at 800x600 at 16 bits (I don't need TFT LCD)

Very thanks

I assume you are referring to the Embest Mini9261 design? If you look in the kernel (arch/arm/mach-at91), there is the platform board file "sbc9261.c" which specifies all the hardware interfaces and data. You'll have to have a look at the spec for the LCD display and setup the framebuffer data (atmel_lcdfb_info and fb_videomode), and then of course match it to the monitor specs (fb_monspecs). You will have probably have to tweak all the mode and timing parameters to get it all right.
Good Luck!

Is there any CH7023 driver for linux?

Tanck you in advance