Difference between revisions of "Framebuffer"
From ArmadeusWiki
(→Armadeus Framebuffer documentation page !) |
|||
| Line 1: | Line 1: | ||
| − | + | On this page you will find usefull informations to have a working Linux Framebuffer on your board. | |
| − | '''Framebuffer is already configured | + | ==Kernel configuration== |
| + | '''Framebuffer is already configured (for Microtips LCD) in standard/default Armadeus kernel image''' | ||
| − | * | + | * launch Linux kernel configuration: |
<pre> | <pre> | ||
| − | make menuconfig | + | [armadeus]$ make linux-menuconfig |
</pre> | </pre> | ||
* in "Char Devices" menu, activate ''"Virtual Terminal"'' and ''"Support for virtual terminal on console"'' | * 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'' |
| − | LCD support | + | * "Console display driver support ->Frame buffer console |
support" (deactivate VGA stuff & add some fonts), then choose 224 colour | support" (deactivate VGA stuff & add some fonts), then choose 224 colour | ||
boot logo | boot logo | ||
| − | * recompile the kernel, now to have console on serial port, you will have to add "console=ttySMX0,115200n8" to your boot parameters | + | * 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)! | * 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> | ||
| Line 28: | Line 32: | ||
| − | + | [[Category:Graphical User Interface]] | |
| − | [[Category: | + | |
Revision as of 22:56, 14 April 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.
