Difference between revisions of "Framebuffer"
From ArmadeusWiki
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* reflash kernel image on your board and enjoy (you should see Linux logo on screen at startup)! | * reflash kernel image on your board and enjoy (you should see Linux logo on screen at startup)! | ||
− | + | =Userland= | |
If you have devfs activated, framebuffer device can be accessed with /dev/fb/0. Otherwise, you will need to create the device node with | If you have devfs activated, framebuffer device can be accessed with /dev/fb/0. Otherwise, you will need to create the device node with | ||
<pre> | <pre> | ||
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You have several test tools on yahoo groups to play a little with the framebuffer. | You have several test tools on yahoo groups to play a little with the framebuffer. | ||
+ | =Links= | ||
+ | * http://linux-fbdev.sourceforge.net/ | ||
[[Category:Graphical User Interface]] | [[Category:Graphical User Interface]] |
Revision as of 17:19, 2 May 2008
On this page you will find usefull informations to have a working Linux Framebuffer on your board.
Kernel configuration
Framebuffer is already configured (for Microtips LCD) in standard/default Armadeus kernel image
- launch Linux kernel configuration:
[armadeus]$ make linux-menuconfig
- in "Char Devices" menu, activate "Virtual Terminal" and "Support for virtual terminal on console"
- activate Device drivers -> Graphic support -> Support for Framebuffer -> Motorola iMX LCD support and choose your LCD in LCD Panel
- "Console display driver support ->Frame buffer console
support" (deactivate VGA stuff & add some fonts), then choose 224 colour boot logo
- recompile the kernel:
[armadeus]$ make linux
- , now to have console on serial port, you will have to add "console=ttySMX0,115200n8" to your boot parameters
- reflash kernel image on your board and enjoy (you should see Linux logo on screen at startup)!
Userland
If you have devfs activated, framebuffer device can be accessed with /dev/fb/0. Otherwise, you will need to create the device node with
# mknod c 29 0
You can activate some test tools from the armadeus build process:
$ make menuconfig -> packages -> fbset
You have several test tools on yahoo groups to play a little with the framebuffer.