Bug#398948: i810fb not available at boot-time if compiled as a module

[Matt Zimmerman <mdz@debian.org>]

On Sat, Jan 20, 2007 at 06:38:18PM +0000, TJ wrote:
> I've been investigating this issue on two notebooks that have i815
> chip-sets, with Ubuntu Edgy 6.10 (2.6.17-10).
> 
> I've documented my research in this Ubuntu bug report:
> 
> https://bugs.launchpad.net/ubuntu/+source/fbset/+bug/64666
> 
> The reason i810fb (and most other framebuffers) isn't available at
> boot-time when compiled as a module is that the framebuffer drivers have
> to call drivers/video/fbmem.c's function fb_get_options(), but when
> built as a module the code to make that call and parse the command-line
> isn't compiled in drivers/video/i810/i810_main.c:
> 
> #ifndef MODULE
> static int __devinit i810fb_init(void)
> {
> char *option = NULL;
> 
> if (fb_get_options("i810fb", &option))
> return -ENODEV;
> i810fb_setup(option);
> 
> return pci_register_driver(&i810fb_driver);
> }
> #endif 
> 
> I looked at the source for several other XXXXfb drivers and they all
> have the same structure.

The argument handling is done differently for the modular case; elsewhere in
the file you'll find module_param macros for that purpose.

-- 
 - mdz